tag:blogger.com,1999:blog-57893345088979031102024-03-15T18:10:06.846-07:00Micromechanics and WatchmakingFollow me as I attend watchmaking school.Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.comBlogger124125tag:blogger.com,1999:blog-5789334508897903110.post-66892096331641754622016-03-17T03:59:00.001-07:002016-04-24T20:16:26.960-07:00Gibson Robot Guitar Tronical Wiring DiagramsHello again everyone. It's been a while since I posted as I completed watchmaking school and that was the purpose of this blog. I may post useful information randomly in the future here however as I have no desire to start another site.<br />
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I have been working on overhauling my generation 1 Gibson Les Paul Robot Guitar. I bought it at a Guitar Center back in 2010. It worked decently, but the controls always seemed kind of wonky.<br />
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I had to rip the guts out of the thing to refinish it, and looking at the wiring it was pretty clear that someone had been in there before me and not re-connected everything properly.<br />
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This wouldn't normally be an issue, but as far as I can surmise, the wiring diagrams are posted nowhere on the Internet. Not on Gibson's website or forums, not on the Tronical website (who made the tuning hardware) nowhere. <br />
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Gibson Tech Support was no help either, they don't have the files. But, thankfully, Tronical still has the information on file and was kind enough to forward it to me. I now post it here so hopefully some of you don't have to spend hours on hold with Gibson trying to get information they seemingly don't have.<br />
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<tr><td class="tr-caption" style="text-align: center;">Using the cpu dial as a Tone pot in a 1 tone 1 volume configuration<br />
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<tr><td class="tr-caption" style="text-align: center;">Using the cpu dial as a tone pot in the SG or Les Paul style configuration<br />
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<tr><td class="tr-caption" style="text-align: center;">Using the cpu dial as a volume pot in the SG or Les Paul style configuration<br />
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com8tag:blogger.com,1999:blog-5789334508897903110.post-88518314676724195622014-08-13T16:16:00.001-07:002014-08-13T16:16:50.126-07:00It's Over!Whew! I've been ill with a cold all week. Bad timing, because this is the week when we take our CW21 certification exams! Today I finished the final task. It's quite a grueling test because of all the different components which are as follows:<br /><br />1. Theory<br />2. Quartz overhaul<br />3. Micromechanical tasks (restaffing/turning a barrel bushing)<br />4. 7750 Chronograph overhaul<br /><br />Overall I feel like my performance was up to standard, but we'll have to wait to see what if any weaknesses the examiners find in my work!<br /><br />I have now cleaned out my desk and packed up all my watchmaking gear. I'll head back in once more to say my farewells to everyone at the school and pick up the results from my final exams.<br /><br />It's been a extremely busy but fulfilling two years here in Seattle. I've made lots of new friends, got to experience a new city, and obtained a skill that will be able to support me for years to come.<br /><br />I'd like to extend a big thank you to my watchmaking instructors Elaine and Erik. I would also like to thank the program coordinator Shawn for her help in getting through these last two years.<br /><br />I'll continue to post interesting watchmaking factoids and oddities as I enter the professional watchmaking world, though I'm sure I'll find reason to post much more rarely. Thanks for following me on this journey!<br />
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<br />-Andrew<br /><br /><br />
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<br />Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com1tag:blogger.com,1999:blog-5789334508897903110.post-18321747660115486942014-07-23T13:56:00.003-07:002014-08-13T16:17:00.306-07:00Finish Line!As of today, I've basically three weeks left of time at both the Watch Technology Institute and in Seattle itself. Two more weeks of class which will be spent practicing for the CW21 test which will be administered in 3 weeks. After the CW21 all that is left is to clean out my desk and say farewell to my instructors and classmates.<br />
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I've secured a very good watchmaking job in Dallas, Texas earlier this month and will be leaving Seattle almost immediately after leaving school. This leaves these few short weeks to tie up any loose ends and get packed!<br />
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I'll probably post once or twice more with updates before my move out of Washington. But thanks for following along with me during these last two years. Time fades away!<br />
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-38210811870042070532014-07-23T13:45:00.001-07:002014-07-23T13:45:42.002-07:00Case Brasswork CompleteAs I posted previously, I've been working on making a watch case out of brass. I have finally got around to finishing all of the forming and drilling. I have decided to go with a through-screw configuration. It looks great, like something off of a submarine. All that remains is to send it off to be plated, then to push the chrono pushers and case tube into the case and install the crystal.<br />
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If it's back from the plating place by the time I leave school I'll post pictures here. <br />
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<tr><td class="tr-caption" style="text-align: center;">Ready for plating!</td></tr>
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-17748154726252955732014-07-03T16:50:00.000-07:002014-07-04T23:10:20.108-07:00Broken stop-leverThis week I have started my final quarter of watchmaking education at North Seattle College here in sunny Seattle. The primary focus of this last few weeks are to focus on finishing up remaining projects and final practice for the AWCI CW21 exam in August. <br />
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Today I worked on a Rolex 3035, which is the previous incarnation of the 3135 that is found in many modern men's watches. The watch had stopped entirely and I had to figure out why.<br />
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In this situation it was fairly obvious as there was something directly blocking the balance rim, the stop lever (also known as the hack) had broken. In the 3035 the stop lever rides on the set lever. When you pull the stem out into the setting position the set lever pivots, pushing the stop lever up where it lightly contacts the balance rim stopping the watch. This allows one to easily set the watch to the second when changing time.<br />
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The hook at the back of the lever in this watch has broken off and the part was sliding freely, blocking the balance regardless of the position of the stem. Fitting a new part confirmed that the slot where it rides and the set lever and in good condition and the old one has most likely broken due to fatigue because of improper assembly. With the part being replaced the mechanism is once again working as designed.<br />
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<tr><td class="tr-caption" style="text-align: center;">Broken!</td></tr>
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<tr><td class="tr-caption" style="text-align: center;">The new part with the old, broken part</td></tr>
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-18300361816430141932014-05-22T07:53:00.001-07:002014-05-22T12:34:11.646-07:00RM90 machine repair<div dir="ltr">
One of the school's RM90 cleaning machines stopped working. I volunteered to fix the thing. The problem was that the retract assist spring was broken (for how long I have no idea). This put extra strain on the drive shaft that moves the cleaning platform up and down.</div>
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Due to this additional strain, the roll pin that tied the shaft to the gearbox had disentigrated.</div>
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To fix the problem I needed to remove the lifting wheel the unbolt the motor from the housing. Once the supply wires were labeled and removed I could disassemble the motor and gearbox assembly. </div>
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The remnants of the original roll pin were hammered out, then I installed a new 3mm pin using a vice to drive the pin home. Finally, after reinstalling the motor I lubricated the mechanism and installed a new assist spring.</div>
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The machine is once again in working order, hopefully my inexpert repair lasts the test of time.</div>
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<tr><td class="tr-caption" style="text-align: center;">Opened gearbox</td></tr>
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<tr><td class="tr-caption" style="text-align: center;">Broken spring hangs from the upper right, the lifting wheel is disconnected on the left side</td></tr>
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<tr><td class="tr-caption" style="text-align: center;">Output cog with remnants of the old roll pin waiting to be hammered clear</td></tr>
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<tr><td class="tr-caption" style="text-align: center;">The new pin installed</td></tr>
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<tr><td class="tr-caption" style="text-align: center;">Machine reassembled with new spring, ready for testing</td></tr>
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-55567883742080998612014-05-01T00:18:00.000-07:002014-05-01T00:18:11.321-07:00SAWTA 4<div class="separator" style="clear: both; text-align: center;">
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Today I passed my SAWTA 4 exam. I'm now a SAWTA certified watchmaker! The remainder of the year will be spent doing projects and prepping for the CW21 exam at the end of the school year in August. Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-56116406313195437882014-04-24T09:19:00.001-07:002014-04-24T17:11:17.257-07:00Metric reamingGot to use the new set of metric reamers today to increase the inner diameter of a pully so it can be fixed to the shaft of a lathe motor. It's provides a very smooth finish and required little effort on my part thanks to the mill's automatic worm feed system.
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<tr><td class="tr-caption" style="text-align: center;">The milling machine</td></tr>
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<tr><td class="tr-caption" style="text-align: center;">Closeup of 8mm reamer</td><td class="tr-caption" style="text-align: center;"></td><td class="tr-caption" style="text-align: center;"><br /></td><td class="tr-caption" style="text-align: center;"><br /></td></tr>
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-51653190244691318492014-04-17T08:31:00.001-07:002014-04-17T16:43:58.423-07:00Case Ring<div dir="ltr">
In the runup to SAWTA 4 I have had extra time during preparations, so I have continued work on the brass chronograph case.</div>
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I have turned a one inch piece of pvc conduit into a suitable casing ring for the Omega 321.</div>
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Now comes the turning of the case. The main challenge with this is going to get the workpiece centered properly for the final dimensioning. The 3 and 6 jaw chucks are not suitable for maintaining perfect concentricity. I will probably have to use a centering scope and the 6 jaw chuck with some shimming to get close enough when working on seperate sides of the case.</div>
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-8717623068583847082014-03-24T21:52:00.002-07:002014-03-24T21:52:59.739-07:00Case Progress<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhyTqFAwLlCnF3BomVplPTShci-42ZPAzIOqkRWFHhiqyBD9jyIGIwqF_h4zeJA5AM5vbf1Y6t9CB9eiL2Dmd_SY2U6ooSMJ8CUYur3vTGJErC3nGHwtQAPoqhKlCtVJqTgV2_x5BjdAykY/s1600/2014-03-24+16.23.43.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhyTqFAwLlCnF3BomVplPTShci-42ZPAzIOqkRWFHhiqyBD9jyIGIwqF_h4zeJA5AM5vbf1Y6t9CB9eiL2Dmd_SY2U6ooSMJ8CUYur3vTGJErC3nGHwtQAPoqhKlCtVJqTgV2_x5BjdAykY/s1600/2014-03-24+16.23.43.jpg" height="225" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Brass Doughnut</td></tr>
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Today I took my brass blank, which essentially started as a thick puck of brass. I then squared off the ends, reduced the diameter a bit and then started hollowing out the middle. Lots of work to go, but I won't press on with forming the rest of the main case until I finish the casing ring which will decide the final inside dimensions of the case.Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-4930716706975821772014-03-14T11:41:00.002-07:002014-03-14T11:41:58.934-07:00Making Case 2<div class="separator" style="clear: both; text-align: center;">
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Here is the basic layout for the proposed case. The outer diameter may have to be reduced to make it easier to install pushers and the stem. I won't be using this as a engineering guide, but as a proof of concept.<br /><br />Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-74102919061154447992014-03-12T15:56:00.001-07:002014-03-13T07:00:11.672-07:00Making Case<div class="separator" style="clear: both; text-align: center;">
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The Omega Seamaster with the 312 movement I made the minute jumper and hammer springs for last year is lacking a case. I have overhauled the watch and it's running well, but it's sad to see such a nice movement sit in a plastic tray. The dial and hands are in okay condition, so I'm going to attempt to turn a brass enclosure for the movement on the lathe and install a case tube and pushers for the operation of the watch. This will consist for a brass cylinder with a crystal pressed into it, the back will be screw-down with a display back.<br />
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So far I've modeled the watch dimensions in CAD and will begin working on the design for the case. Then the difficult part will be turning the components on a lathe which is really too small for the job. Stay tuned!<br />
<br />Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-44618761189598390352014-02-25T16:01:00.002-08:002014-03-11T00:42:43.659-07:00Finished Escapement Model<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjX36ixpHXW8_Ey_0am6Po7ROiQvvX4ciof30c-W7iogNJpQZxXPfeuUnyI1e5HtSqg-7eOZVNLoKyi5yi40yHdefAsAaIAdX_OwPK95Zdt6vp1JXHyPr1s9NqOgm5mrRRp21ii5q_8XDFb/s1600/escapepic2.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjX36ixpHXW8_Ey_0am6Po7ROiQvvX4ciof30c-W7iogNJpQZxXPfeuUnyI1e5HtSqg-7eOZVNLoKyi5yi40yHdefAsAaIAdX_OwPK95Zdt6vp1JXHyPr1s9NqOgm5mrRRp21ii5q_8XDFb/s1600/escapepic2.png" height="320" width="223" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Finished line draft</td></tr>
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Today I finished the CAD version of my escapement. This was done using Google sketchup.Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-25354305952296681522014-02-25T01:08:00.001-08:002014-02-25T01:08:14.475-08:00DraftingThis week we are doing a drafting module in class. The old Chicago School of Watchmaking program has a 'drawing of the Swiss lever escapement' chapter so we are following the steps outline in that program to complete a reproduction of a standard Swiss lever. In class I have been working with traditional drafting equipment: pencil, compass, square, protractor, etc. <br /><br />However I also have been working with CAD software which makes the process much more accurate and much cleaner. See the pictures below.<br />
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<tr><td class="tr-caption" style="text-align: center;">Here is the CAD layout for the escape wheel</td></tr>
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<tr><td class="tr-caption" style="text-align: center;">CAD escape wheel finished. Next step is to layout the fork, pallet and roller.</td></tr>
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<br />Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-40515454919534878162014-02-16T22:46:00.000-08:002014-09-20T08:50:54.141-07:00Power Flow<div class="separator" style="clear: both; text-align: center;">
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As a watchmaker it's important to understand how power is transmitted in a watch. This enables one to more easily troubleshoot problems that may arise in the system.<br />
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A common question that comes up on tests in class and in certification exams deal with how power is transmitted in a watch. Sometimes it's difficult to create a mental picture of these systems as they are condensed and typically inhabit 2 sides of the watch.<br />
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For visualization and study I have constructed a flow chart which is helpful in understanding the movement of power in the system. This particular chart is for a 2824-2 and watches of similar design sans the automatic and calendar systems.Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-68519149362588267052014-02-14T12:42:00.000-08:002014-05-17T10:23:22.622-07:007751 Chronograph Components Assembly<div class="separator" style="clear: both; text-align: left;">
Today I finished the overhaul of the 7751. It just takes a bit longer than the 7750 because of the extra parts on the dial side. Overall the process took around 5 hours to complete. These practice sessions are important because we have to service 7750 chronographs for both the SAWTA 4 and CW21 testing. Next week I will be working on a 7750 installed in a Tudor case that has been thoroughly mucked up by my instructor. I will try and post results.</div>
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<tr><td class="tr-caption" style="text-align: center;">Chronograph base components technical documentation</td></tr>
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<tr><td class="tr-caption" style="text-align: center;">Here is the cam jumper and cam installed. The cam synchronizes and controls the functions of the chrongraph.</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhN1kU2lpNA6qmNbKRBCMEGyVY0nidJZJNiTO3LI178kdI4kP2zqgmWmR8-4i9AglUOnqUrTsoeOct4n6sdqStivlCQRp4nZ1dKZ6-nCRpc8of7HOh_btCRoD5b8tB26Nh7iMUHk7xQBQbx/s1600/2014-02-13+16.13.48.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhN1kU2lpNA6qmNbKRBCMEGyVY0nidJZJNiTO3LI178kdI4kP2zqgmWmR8-4i9AglUOnqUrTsoeOct4n6sdqStivlCQRp4nZ1dKZ6-nCRpc8of7HOh_btCRoD5b8tB26Nh7iMUHk7xQBQbx/s320/2014-02-13+16.13.48.jpg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here the lock and the ratchet wheel driving wheel have been installed</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgaOsVL1Q_5ocPCPWXbV1JCZaiR2Q8nnbobhqc387zAoJO-iv4oBydxKuRoTHT-M_CA2FZ22RHH0G-lP4kulyS52A9KVkhTsH1XaPxTJ0j1NIKzzF9JPgXcqPzTKTJNbVwZnG4udb8L6ZQ9/s1600/2014-02-13+16.15.09.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgaOsVL1Q_5ocPCPWXbV1JCZaiR2Q8nnbobhqc387zAoJO-iv4oBydxKuRoTHT-M_CA2FZ22RHH0G-lP4kulyS52A9KVkhTsH1XaPxTJ0j1NIKzzF9JPgXcqPzTKTJNbVwZnG4udb8L6ZQ9/s320/2014-02-13+16.15.09.jpg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Chronograph bridge, installed</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjxrTyOebXpqT4XdmZ-DCuzs6-jSnzcN5ComfDbOTqV3pd56J0dTaKPb5_dCpOayMeRNG09cg5eG3G8jyq3aD-USiD5mDbV1ELCFDgEgFQ9O68XXronWbAj3bMQGXl7fOaomkALU5Ngy8M5/s1600/2014-02-13+16.18.01.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjxrTyOebXpqT4XdmZ-DCuzs6-jSnzcN5ComfDbOTqV3pd56J0dTaKPb5_dCpOayMeRNG09cg5eG3G8jyq3aD-USiD5mDbV1ELCFDgEgFQ9O68XXronWbAj3bMQGXl7fOaomkALU5Ngy8M5/s320/2014-02-13+16.18.01.jpg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here is the operating lever spring, lubricated and installed. This is what pushes back on the chronograph buttons when they are depressed</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhMrylL5VqqmZOzcdYB-a3p6nCjx-fy8A0ViJiTV_kqmRRTjmu-YY5fS8wRJu_zPuTVnUkkvx6QiWAFyiIOrW9T63IzWdtmIax_lssjAwHt6vzYng2w8-kMQDCf-EJXAKiMWLybTjUG3b-5/s1600/2014-02-13+16.20.41.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhMrylL5VqqmZOzcdYB-a3p6nCjx-fy8A0ViJiTV_kqmRRTjmu-YY5fS8wRJu_zPuTVnUkkvx6QiWAFyiIOrW9T63IzWdtmIax_lssjAwHt6vzYng2w8-kMQDCf-EJXAKiMWLybTjUG3b-5/s1600/2014-02-13+16.20.41.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here is the operating lever, notice some more of the white grease on the end where it interacts with the cam</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNc2Hii0WA9lGpx5jIH6pVXKWamZ-yLjVJGlDHJwbdrmBKVXVbxhsCMp7oioJiDPGp3nkXkkCZnck60COjUIjDeDDsLfF0dIAL8u1gkrQTauituUp-cG9-hOAJ_5S0Z8DD_kDEUB3kGTFw/s1600/2014-02-13+16.21.42.mp4" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNc2Hii0WA9lGpx5jIH6pVXKWamZ-yLjVJGlDHJwbdrmBKVXVbxhsCMp7oioJiDPGp3nkXkkCZnck60COjUIjDeDDsLfF0dIAL8u1gkrQTauituUp-cG9-hOAJ_5S0Z8DD_kDEUB3kGTFw/s320/2014-02-13+16.21.42.mp4" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Testing the operating lever and its interaction with the cam</td></tr>
</tbody></table>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiYDUoUpeDZoyr11Ln0ybXcpERoiLkR0m6zIyBfUnl-HobAifDK17w2ihSay8Ya_lsSeNGKeLRZJ_9GmbIAPfXo5OwLpaygJ61EELNe-g19-gM4kvEajPal8x_qQACC9BauY0ZcS0D7tjtl/s1600/2014-02-14+07.38.53.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"></a><br /></div>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbvC2njmtil7aQcDPUMnXFXXpThSXFUq_qPffJEb2Z1Wp1biJnrvXHhC_bZ6UPIGcy8rebkmdreeYaqv5GZ3YMp4WA3Pb4UOuZmPJ6bRy-NX4q_mJVbLthGHAS0z_49JoaaLs2et-mrxbD/s1600/2014-02-14+08.55.34.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbvC2njmtil7aQcDPUMnXFXXpThSXFUq_qPffJEb2Z1Wp1biJnrvXHhC_bZ6UPIGcy8rebkmdreeYaqv5GZ3YMp4WA3Pb4UOuZmPJ6bRy-NX4q_mJVbLthGHAS0z_49JoaaLs2et-mrxbD/s1600/2014-02-14+08.55.34.jpg" height="320" width="180" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The next phase</td><td class="tr-caption" style="text-align: center;"><br /></td><td class="tr-caption" style="text-align: center;"><br /></td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjYYQozV-U6CQ0mskDYHcUoeqfUYTC2QVVGUAXDagtDor5VbA2tzeajwQQBDr1oRLvqA59waa9HOHlbYr6bxC_LQalKBRQZVQJ7OOLOLT5oMYRzSYqA9NHzbAu6dvcycaEZSCts0R7tUOB1/s1600/2014-02-14+07.33.58.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjYYQozV-U6CQ0mskDYHcUoeqfUYTC2QVVGUAXDagtDor5VbA2tzeajwQQBDr1oRLvqA59waa9HOHlbYr6bxC_LQalKBRQZVQJ7OOLOLT5oMYRzSYqA9NHzbAu6dvcycaEZSCts0R7tUOB1/s1600/2014-02-14+07.33.58.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here the chronograph and minute counting wheels have been installed along with the tiny oscillating pinion which is the disconnect between the watch and the chronograph mechanisms</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEip1QPKsxiLCclsMHMQDiVE1_lZzx5PKC93AVRX1kbsRqSek1sVKiIx_aN9eMVarZTarFGjjxX5-NFiXMkdojFxCuNx6Gf6URcDT2FYjIc1-i7QiiUX1NEGdb42dry0-ah0s2R4oTl4YaHE/s1600/2014-02-14+07.38.53.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEip1QPKsxiLCclsMHMQDiVE1_lZzx5PKC93AVRX1kbsRqSek1sVKiIx_aN9eMVarZTarFGjjxX5-NFiXMkdojFxCuNx6Gf6URcDT2FYjIc1-i7QiiUX1NEGdb42dry0-ah0s2R4oTl4YaHE/s1600/2014-02-14+07.38.53.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here is the clutch, reversing wheel and reduction wheel installed</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-ZwdBOtYyeqhmygn7N9uQE89NNJhNQHphBkd8QbVuHaWEolk1VIHovMOZIPWOhuNDt6kj1ieaEmlNl3Pirb4gwUncsIEASYlxvpgzlNEfme5QmShMOH7OFybhyphenhyphen75UqvJwUyEKeC-pmcMg/s1600/2014-02-14+07.42.14.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-ZwdBOtYyeqhmygn7N9uQE89NNJhNQHphBkd8QbVuHaWEolk1VIHovMOZIPWOhuNDt6kj1ieaEmlNl3Pirb4gwUncsIEASYlxvpgzlNEfme5QmShMOH7OFybhyphenhyphen75UqvJwUyEKeC-pmcMg/s1600/2014-02-14+07.42.14.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The automatic bridge, installed. The hammer has also been added before the bridge is installed</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8vsISFpb_suXZrVU_qCZWZux2aBakuyTFboz_nQ9f4kjppZakHaZXaKSl-_VH3pxEftwlszw4seI6HrEvlHSpu5JG6ca-HabzbsQqsXEH68HqMEpViFWMsGzeXUQtEDlreoXBKcqe8yDA/s1600/2014-02-14+07.45.40.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8vsISFpb_suXZrVU_qCZWZux2aBakuyTFboz_nQ9f4kjppZakHaZXaKSl-_VH3pxEftwlszw4seI6HrEvlHSpu5JG6ca-HabzbsQqsXEH68HqMEpViFWMsGzeXUQtEDlreoXBKcqe8yDA/s1600/2014-02-14+07.45.40.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The long curved thick spring on the left side is the hammer spring, it puts pressure on the return to zero hammer</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBDP9D2Zsj9HKx3hP1c3u-KB5XPD2BqBx_AEhJ4AJ61lR_xwQqzfNjOZqi00gQAOnm-kNf8ORwptOpNtFm6qjKRWnICdhjGiB0OSNrsiU4kY-Ip1gyNV79JvoZPvdL6EQh72rv_IRbD6fE/s1600/2014-02-14+07.47.08.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBDP9D2Zsj9HKx3hP1c3u-KB5XPD2BqBx_AEhJ4AJ61lR_xwQqzfNjOZqi00gQAOnm-kNf8ORwptOpNtFm6qjKRWnICdhjGiB0OSNrsiU4kY-Ip1gyNV79JvoZPvdL6EQh72rv_IRbD6fE/s1600/2014-02-14+07.47.08.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here is the depthing engagement between the oscillating pinion and the chronograph wheel. The depth is controlled by the clutch and its eccentric, here depthing is slightly shallow as you want about 2/3 engagement</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgbrwbHG23HdVoL89QHy2umc1UW5Vzq7gI6tLqcnxsI6__FyAw3Og_xQzriHkJOC2_86oJcDBogahcFOSzlXlRRxmcrf2oyN8pzJ7MG9SRezgsdowESxC1BMmv-vPeW_DtLihepAiIOIHY0/s1600/2014-02-14+07.50.08.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgbrwbHG23HdVoL89QHy2umc1UW5Vzq7gI6tLqcnxsI6__FyAw3Og_xQzriHkJOC2_86oJcDBogahcFOSzlXlRRxmcrf2oyN8pzJ7MG9SRezgsdowESxC1BMmv-vPeW_DtLihepAiIOIHY0/s1600/2014-02-14+07.50.08.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Increased engagement slightly, enough to have good positive contact but not enough to increase friction beyond tolerance</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh03jeGI_7CSWvjkuoi4W55thcgIvyDuHMA0QAtbGtvtj4-v7Lj-9Ow5JgLNcCNVKI0RePTqsJXdIdVXT3_jLWaWWHe7ZkCbSSsDt-IyI_to8qgYi4BO8w4KVxWQXBHlYn_PxzKYGwVR0dV/s1600/2014-02-14+08.06.33.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh03jeGI_7CSWvjkuoi4W55thcgIvyDuHMA0QAtbGtvtj4-v7Lj-9Ow5JgLNcCNVKI0RePTqsJXdIdVXT3_jLWaWWHe7ZkCbSSsDt-IyI_to8qgYi4BO8w4KVxWQXBHlYn_PxzKYGwVR0dV/s1600/2014-02-14+08.06.33.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Finally the minute counter jumper spring must rest perfectly on 2 teeth of the minute counter when the hammer has been activated. This prevents the minute counter hand from moving when the hammer is reset</td><td class="tr-caption" style="text-align: center;"><br /></td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXbanOz_Fl1h474V1Oa1mDn5sQYhia8yvZvzDmSnWQxw6ibmoRv5bgIgDN8TuybxY3O_ivO21vwNMfix2WdKyiTgZ4578wqM4h1UNXE5hRT4aiJKxFTPN8LEbIUax8WKow5UT-H8XFsvol/s1600/2014-02-14+08.55.16.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXbanOz_Fl1h474V1Oa1mDn5sQYhia8yvZvzDmSnWQxw6ibmoRv5bgIgDN8TuybxY3O_ivO21vwNMfix2WdKyiTgZ4578wqM4h1UNXE5hRT4aiJKxFTPN8LEbIUax8WKow5UT-H8XFsvol/s1600/2014-02-14+08.55.16.jpg" height="320" width="180" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Time to flip the watch over and work on the dial side components</td><td class="tr-caption" style="text-align: center;"><br /></td><td class="tr-caption" style="text-align: center;"><br /></td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjKAwCA0crVGIcPbXoB1_eAkmKEqV9F60X3IhmZq-7pbo4oK7I88FZ4SPQR_Xi3r72GsHEwqSsjNmvaD1neDcLBpXVjqxbRz4LCyJ7yXWUwBtRdzug5l0UCcsoF7bFsWHkt5duyBHhPodLg/s1600/2014-02-14+08.12.14.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjKAwCA0crVGIcPbXoB1_eAkmKEqV9F60X3IhmZq-7pbo4oK7I88FZ4SPQR_Xi3r72GsHEwqSsjNmvaD1neDcLBpXVjqxbRz4LCyJ7yXWUwBtRdzug5l0UCcsoF7bFsWHkt5duyBHhPodLg/s1600/2014-02-14+08.12.14.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The driving pinion is pressed on. This is the friction point in the watch that allows the hands to move freely during setting but in normal operation is still moved by the mechanism</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi314TwFvTDovrnAexzeLCYNx9lNnc_JDeHra5YGIjK5riDesmWWrEQROieDYM0vS7AC3D3o4DEIjKXZD3zTg2QRRn3zVKQZyWJamxD0TT2Ua9J8CvvFpGmvehWY8n-xsliIKCQnB9EMwY0/s1600/2014-02-14+08.14.34.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi314TwFvTDovrnAexzeLCYNx9lNnc_JDeHra5YGIjK5riDesmWWrEQROieDYM0vS7AC3D3o4DEIjKXZD3zTg2QRRn3zVKQZyWJamxD0TT2Ua9J8CvvFpGmvehWY8n-xsliIKCQnB9EMwY0/s1600/2014-02-14+08.14.34.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here is some more of the motion work, the minute wheel and free cannon pinion have been installed</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiP-Ugksa_BOSyy71US851iE0d8Va4_6CFTQGACVyKQbtFMZ5DV43LV4jEvYoyaXxiVNx9lNPonWsc6V5nhWpdQQ8Mq6fvJDcj0gytejMHNO-bBX044tJ0U3D96RXoKHdLTAML0bnE9zb08/s1600/2014-02-14+08.19.51.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiP-Ugksa_BOSyy71US851iE0d8Va4_6CFTQGACVyKQbtFMZ5DV43LV4jEvYoyaXxiVNx9lNPonWsc6V5nhWpdQQ8Mq6fvJDcj0gytejMHNO-bBX044tJ0U3D96RXoKHdLTAML0bnE9zb08/s1600/2014-02-14+08.19.51.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here are the hour counter return to zero components and wheel</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOPtCd1xuXtfmKacH9QECftOxulh0RpWq_N3u0PiEj9J1DPHuczp5hJ35TYghyphenhyphen_ehAWbwFrdENQX0UeByAWPRc3tQu-Qygo7b2LBiXm2ruWrAvgAltXBT3ynNEIOqFB24Wsow9VyLVwcuu/s1600/2014-02-14+08.23.00.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOPtCd1xuXtfmKacH9QECftOxulh0RpWq_N3u0PiEj9J1DPHuczp5hJ35TYghyphenhyphen_ehAWbwFrdENQX0UeByAWPRc3tQu-Qygo7b2LBiXm2ruWrAvgAltXBT3ynNEIOqFB24Wsow9VyLVwcuu/s1600/2014-02-14+08.23.00.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here is the day corrector and its spring</td></tr>
</tbody></table>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi1d7dWJFTcs8TE8FJPpkpSNhX1m8hyphenhyphen58wD8mN6_yrx38mOd6nmX7ZDoltv27FZ2aF5beiOfHn6iT7H_I1Io_TI7SsE9CH_swgcOQzNE27szqDqtWD6SwqNSKAu_oJEKE_dfrwXlhduhGHB/s1600/2014-02-14+08.25.25.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi1d7dWJFTcs8TE8FJPpkpSNhX1m8hyphenhyphen58wD8mN6_yrx38mOd6nmX7ZDoltv27FZ2aF5beiOfHn6iT7H_I1Io_TI7SsE9CH_swgcOQzNE27szqDqtWD6SwqNSKAu_oJEKE_dfrwXlhduhGHB/s1600/2014-02-14+08.25.25.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here are the 12 and 24 hour wheels installed</td></tr>
</tbody></table>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEht0IJ5qblF5PN8yGCMfSPlY8-B22gOX8bVSAnd0AhPrzP6E4Fr0VhviekOEAWj37HW8OIgoKVUwK2yo45gUV_1feVUC83peGdbYiaRoM4Rtm4VcCoVVh43Y91Z1zaLZAaDGUoHrf2sFbwA/s1600/2014-02-14+08.27.59.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEht0IJ5qblF5PN8yGCMfSPlY8-B22gOX8bVSAnd0AhPrzP6E4Fr0VhviekOEAWj37HW8OIgoKVUwK2yo45gUV_1feVUC83peGdbYiaRoM4Rtm4VcCoVVh43Y91Z1zaLZAaDGUoHrf2sFbwA/s1600/2014-02-14+08.27.59.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Finally, on this level, the calendar driving wheel</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjerDYZT-4EabNxzJbMjB8EK2wJYQgdwCAFkQ4ydTobzV5avwjP80AubCS8jgvYRwgfEls69RGejUw2rioEhB81Z4ydNsipZQnpbvsV-l83Y7bicar2GsHIPqHT12pV60OjquE7UGPVgeV/s1600/2014-02-14+08.55.06.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjerDYZT-4EabNxzJbMjB8EK2wJYQgdwCAFkQ4ydTobzV5avwjP80AubCS8jgvYRwgfEls69RGejUw2rioEhB81Z4ydNsipZQnpbvsV-l83Y7bicar2GsHIPqHT12pV60OjquE7UGPVgeV/s1600/2014-02-14+08.55.06.jpg" height="320" width="180" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The penultimate page! This is all jumpers and correctors</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgeMlOYebAdF-ZesiRkBb6uIYpwhZIoJyEAU9xIpPefYIAi7_isQJ8HcneAZ69qr-qW-HjNTOgTUAGtWeChtRksf7Vo0gD5byaI8yi8X8GnbraAtO1RjqcxNusndlvpSHALkezB4lXUviSV/s1600/2014-02-14+08.40.22.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgeMlOYebAdF-ZesiRkBb6uIYpwhZIoJyEAU9xIpPefYIAi7_isQJ8HcneAZ69qr-qW-HjNTOgTUAGtWeChtRksf7Vo0gD5byaI8yi8X8GnbraAtO1RjqcxNusndlvpSHALkezB4lXUviSV/s1600/2014-02-14+08.40.22.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Date star wheel installed with the date corrector</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjh1X6x0Ob62CcEeaPtFUfuJ4xiac_dlb0A-89vRL_eKsNoqkqPHUNW4n-7QBVdYgpExOCArotKizOb-b1PMiXK2JySpmjdzMiFVQq2cK8TVcYrwYRoQ7SL2FSe22EowowcUuJOgg3mbON/s1600/2014-02-14+08.49.28.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjh1X6x0Ob62CcEeaPtFUfuJ4xiac_dlb0A-89vRL_eKsNoqkqPHUNW4n-7QBVdYgpExOCArotKizOb-b1PMiXK2JySpmjdzMiFVQq2cK8TVcYrwYRoQ7SL2FSe22EowowcUuJOgg3mbON/s1600/2014-02-14+08.49.28.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here are all of the jumpers and springs. These index the day and month dials, along with the moonphase indicator</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3jevWv8z_4lt30FG8J5yRa7-QJ_3IJ8KmzCMUzGz5VoN9DfkBSPspMacXfO-gi3jVmqG3q_NQYS754WwyZuHWaoKvKB8hMRjW5cm0ifAETPWeq65VpfMpEqnk3XYflCxGemHTFOynV3-m/s1600/2014-02-14+08.54.57.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3jevWv8z_4lt30FG8J5yRa7-QJ_3IJ8KmzCMUzGz5VoN9DfkBSPspMacXfO-gi3jVmqG3q_NQYS754WwyZuHWaoKvKB8hMRjW5cm0ifAETPWeq65VpfMpEqnk3XYflCxGemHTFOynV3-m/s1600/2014-02-14+08.54.57.jpg" height="320" width="180" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The final page of assembly, some final plates and the indicators</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDi8YrWIQEnLTS1eAmtT6683vRZQNGjCQFZtsC-wr6rcJBelVUgVSAccy3F6lUMizbuNul0vJWd29mWe3jKc-iha9UVpqNzJ6cp9e6CIkdORU5Ka8qd29T6ZR76rZAVrMRC3ZXQTl0QGxZ/s1600/2014-02-14+09.00.23.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDi8YrWIQEnLTS1eAmtT6683vRZQNGjCQFZtsC-wr6rcJBelVUgVSAccy3F6lUMizbuNul0vJWd29mWe3jKc-iha9UVpqNzJ6cp9e6CIkdORU5Ka8qd29T6ZR76rZAVrMRC3ZXQTl0QGxZ/s1600/2014-02-14+09.00.23.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here are the 3 indicator wheels installed along with the moonphase platform and combined maintaining plate</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj3QjNU9A_GjmhjSCxoCGo06y4culbBCbHp_MoX2ffVrk1_LxBXH8uqHtL2wNq-9tPifmct87bRxfqVaFlbK78nXVTcVjXIULWEpq6aE6zu2fE-JhbRitVLPiqcApHZ-ji0RcSph5BeoGxQ/s1600/2014-02-14+09.07.51.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj3QjNU9A_GjmhjSCxoCGo06y4culbBCbHp_MoX2ffVrk1_LxBXH8uqHtL2wNq-9tPifmct87bRxfqVaFlbK78nXVTcVjXIULWEpq6aE6zu2fE-JhbRitVLPiqcApHZ-ji0RcSph5BeoGxQ/s1600/2014-02-14+09.07.51.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Dial is installed, hands are installed</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhIwN6ad_DZ2MhYOQmP8PBT6EfAtolTemOvOIUEvHF-mrpCRGm1sH6jW_mX2SNnPJjJ7KkyNcdTVqQq6tFbEmcwDXX0GYZI6sGA_4M5JX1JmrCTFCgr8TWrUql1ZHeEmfpaxlW1SZAmsri/s1600/2014-02-14+09.07.40.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhIwN6ad_DZ2MhYOQmP8PBT6EfAtolTemOvOIUEvHF-mrpCRGm1sH6jW_mX2SNnPJjJ7KkyNcdTVqQq6tFbEmcwDXX0GYZI6sGA_4M5JX1JmrCTFCgr8TWrUql1ZHeEmfpaxlW1SZAmsri/s1600/2014-02-14+09.07.40.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Using a hand press to apply subdial hands</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEisGADnyfrAVt6aVATNFnrAxK2MQ5tdCAj84zyNDHST_DRDKYJGxFJh5yoWHd2MTdlEnMNFDY1X0tJiTIvMRg5uOJG6c5RWYebRoifQyfzsgX0EY3ONV0mbxBs3EXUd2Tzqo37dqIkZ0P9x/s1600/2014-02-14+09.21.20.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEisGADnyfrAVt6aVATNFnrAxK2MQ5tdCAj84zyNDHST_DRDKYJGxFJh5yoWHd2MTdlEnMNFDY1X0tJiTIvMRg5uOJG6c5RWYebRoifQyfzsgX0EY3ONV0mbxBs3EXUd2Tzqo37dqIkZ0P9x/s1600/2014-02-14+09.21.20.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Completed movement, ready for casing</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtsT9EWCFzGctR0DnpvjxQsjY-SVmGwt0BSW0OHML7b1wOmGLuZivQyCA_oHYh9Yj1M5pAps0lt2x7GiMjfD41b2dVMGuedeBl02r27usL7_US1jEVGXRZrPuiJIWdQLGlf-HPTIgDBqOS/s1600/2014-02-14+09.47.14.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtsT9EWCFzGctR0DnpvjxQsjY-SVmGwt0BSW0OHML7b1wOmGLuZivQyCA_oHYh9Yj1M5pAps0lt2x7GiMjfD41b2dVMGuedeBl02r27usL7_US1jEVGXRZrPuiJIWdQLGlf-HPTIgDBqOS/s1600/2014-02-14+09.47.14.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Cased and finished</td></tr>
</tbody></table>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiv0yBajMxo9FYEkqykghDaZW2rQbJqBVwmVu8bNB_YtHNwXf2gotYaRGp689Zky9IbVpAmjJCuyeCXEnt-w0Qw9010TzRe1yS7Oh5IqlAQ1aM5TDXAom20oCoohQD7Nalr5NQGb0I-PyTC/s1600/2014-02-14+07.47.08.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><br /></a></div>
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-19683355549459412612014-02-13T17:20:00.004-08:002014-02-13T17:20:50.155-08:007751 Chronograph Base MovementToday in class we did some practice for some of the tasks likely to come up on the CW21 test. These include a staff replacement and a barrel bushing manufacture and install. Once I had finished with those I started a reassembly of a 7751 which I was assigned yesterday. It's the same as a 7750, but has a more complicated assembly on the dial side. Below you will find step by step (more or less) assembly of the base movement. The chronograph components will follow shortly.<br />
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjWYpwqyB3qqfG0Q03_Nyatk_kg3FYsMhrSPH7UGVOueFRwqj2-CGVBGtFnuaFaUpFXOx5PBJj77e_HDTWgvTxnDhLVtSxUDwhcBlJgxISYwdXh1FryTDlAJ_W41d1F0_LC3Nes9RPZsan7/s1600/2014-02-13+14.13.47.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjWYpwqyB3qqfG0Q03_Nyatk_kg3FYsMhrSPH7UGVOueFRwqj2-CGVBGtFnuaFaUpFXOx5PBJj77e_HDTWgvTxnDhLVtSxUDwhcBlJgxISYwdXh1FryTDlAJ_W41d1F0_LC3Nes9RPZsan7/s1600/2014-02-13+14.13.47.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">These are the oils I will be using for this movement, from left to right (9415)(9010)(molycote dx grease)(D5)</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipEgEKb-F1D20SkZcgLB6N0XFGyJS6kzkY0FA5nAj9f5ds1xguWeOGRknsP2K562alEQpIbuVUMdTi7FG9YUEd-NZD1J_uhIUJEl0evnJ8m7ofnL2zsELrrXSxOR0NnPGEq1jhrag_huGu/s1600/2014-02-13+14.31.26.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipEgEKb-F1D20SkZcgLB6N0XFGyJS6kzkY0FA5nAj9f5ds1xguWeOGRknsP2K562alEQpIbuVUMdTi7FG9YUEd-NZD1J_uhIUJEl0evnJ8m7ofnL2zsELrrXSxOR0NnPGEq1jhrag_huGu/s1600/2014-02-13+14.31.26.jpg" height="320" width="180" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here is the oiling and assembly chart for the winding and setting mechanism</td></tr>
</tbody></table>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAFB4YWk5UQvvqWcjo2jAr74WQ2emGJyqcYRFwJ_4tmQ178FrXAtDn0h3n7QO8SJD2eLzfBdrO7cX3sBjsz9UOcczFSHkmfIL_bsOvdkq9e4Efk2Gm5p6mQGHO6XoUR6xGg3bZDPRvEB6u/s1600/2014-02-13+14.20.28.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAFB4YWk5UQvvqWcjo2jAr74WQ2emGJyqcYRFwJ_4tmQ178FrXAtDn0h3n7QO8SJD2eLzfBdrO7cX3sBjsz9UOcczFSHkmfIL_bsOvdkq9e4Efk2Gm5p6mQGHO6XoUR6xGg3bZDPRvEB6u/s1600/2014-02-13+14.20.28.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Grease is used on the sliding metal-on-on metal surfaces. I wick the D5 heavy oil into the parts which rotate on a pivot point. Here from left to right you have the: time setting gear, yoke spring, rocking bar, yoke, sliding and winding pinions and the setting lever</td></tr>
</tbody></table>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj07iYeIEFwoAui_Cs4oAFyMr218Ch-h6nhGGPmlsr39bYzJFdfwF1_u4nwnRnhg22byORl7N2ckgPE1B53PcOPzqgj7qicyQQMjsrA8mEb5f2fDi18sqvBN5lizR4o95HLGrFoIgojBLnh/s1600/2014-02-13+14.23.03.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj07iYeIEFwoAui_Cs4oAFyMr218Ch-h6nhGGPmlsr39bYzJFdfwF1_u4nwnRnhg22byORl7N2ckgPE1B53PcOPzqgj7qicyQQMjsrA8mEb5f2fDi18sqvBN5lizR4o95HLGrFoIgojBLnh/s1600/2014-02-13+14.23.03.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">All of the setting components are held down by this combined setting lever jumper/plate which also holds the intermediate setting wheel. Notice the white molycote on the jumper teeth to the lower right</td></tr>
</tbody></table>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjnXNxYVmwQ3HScKBLBoeOAdew8mRqgrkoA7GMHlQx2sYsDdexramVrm7pfUcC1biHx-3LhiGTT3WLvGkk6HtTZ6LcGr0JtaqqFNEahBRvlCyheOrBLYL0QExMHWpb4c3X4I8V6PE8CIuPl/s1600/2014-02-13+14.26.09.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjnXNxYVmwQ3HScKBLBoeOAdew8mRqgrkoA7GMHlQx2sYsDdexramVrm7pfUcC1biHx-3LhiGTT3WLvGkk6HtTZ6LcGr0JtaqqFNEahBRvlCyheOrBLYL0QExMHWpb4c3X4I8V6PE8CIuPl/s1600/2014-02-13+14.26.09.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Now that winding and setting are taken care of, time to flip over to the movement side and get the movement side components installed!</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiVMOeErl7mVSJNaPzDKZxBaQaz1Rl-3dA0ZKOTUM2WAz1WcJSTNYoi0cYt6f7Y4ys7Cmm4yofrKVCuk2cJF5AXlTxf6azUWL4Buol0ZX8JRctHUNlAi1mNRjGZW_wBGqw-o10NLWrZLCWr/s1600/2014-02-13+14.32.00.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiVMOeErl7mVSJNaPzDKZxBaQaz1Rl-3dA0ZKOTUM2WAz1WcJSTNYoi0cYt6f7Y4ys7Cmm4yofrKVCuk2cJF5AXlTxf6azUWL4Buol0ZX8JRctHUNlAi1mNRjGZW_wBGqw-o10NLWrZLCWr/s1600/2014-02-13+14.32.00.jpg" height="320" width="180" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The going-train assembly instructions</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhGCz46LNuCHcYiLOx4X7SfiJdfP8spQZoN-m5WzoaSQwISDOjogUGb4xqvGEBXfPPMIq6O1fYs_jAvdNzNeGOh9EFc2Hp7mNqLefFu3T8DSI-wjuKVt8SzElPJwKRFJEkiOlYFsBNVjQLL/s1600/2014-02-13+14.29.41.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhGCz46LNuCHcYiLOx4X7SfiJdfP8spQZoN-m5WzoaSQwISDOjogUGb4xqvGEBXfPPMIq6O1fYs_jAvdNzNeGOh9EFc2Hp7mNqLefFu3T8DSI-wjuKVt8SzElPJwKRFJEkiOlYFsBNVjQLL/s1600/2014-02-13+14.29.41.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Moving counter-clockwise from the large silver barrel at 12 o'clock you have: the great whee, third wheel, second wheel, escape wheel. The thin silver metal bar in the middle is called the hack. This stops the watch when you move the watch into time-setting position</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_8WfAYGyyD_B5CNNiA3yE2cXgYOlSTMcyXb57mHSaIMKuIl6u3SpusykeA4YqLz-Oxlj21oKi7vdMMZIQ4MIcjdf7OHPvUujcucT2LZMRJSHo_zD-1k9sVAjmDC-3wDb17xMtf5J8BoJU/s1600/2014-02-13+14.40.49.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_8WfAYGyyD_B5CNNiA3yE2cXgYOlSTMcyXb57mHSaIMKuIl6u3SpusykeA4YqLz-Oxlj21oKi7vdMMZIQ4MIcjdf7OHPvUujcucT2LZMRJSHo_zD-1k9sVAjmDC-3wDb17xMtf5J8BoJU/s1600/2014-02-13+14.40.49.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">After installing the barrel bridge plate which holds all of the train wheels down it's time to install the pallet fork. Here it is with its bridge installed, you can see how the jewel pallets interact with the teeth of the silver escape wheel.</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNNiFdD9VHtBJezemtdTQ3DH0k0CNgDSh3XEUBDFSiDDRfM9213Sk7Pena7nkFA4aq69_4INU0kmR9e5P2gQy5NdCSPJshnhkW7gzEVJqbUAZropCZoh0jkYLfqoygVNmiXqCtxFBreVg2/s1600/2014-02-13+14.42.33.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNNiFdD9VHtBJezemtdTQ3DH0k0CNgDSh3XEUBDFSiDDRfM9213Sk7Pena7nkFA4aq69_4INU0kmR9e5P2gQy5NdCSPJshnhkW7gzEVJqbUAZropCZoh0jkYLfqoygVNmiXqCtxFBreVg2/s1600/2014-02-13+14.42.33.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Now the rest of the winding components, here I have applied grease to the area where the crown wheel rides. It's important to have this area generously lubricated due to the large amount of friction latent in the design.</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigMf28GuBFaNCvOSoarvTkBoZO-9-p38J8lv_wJo_quW-GCOdUSNg8kjRehXt-suk3iMzSJ60B77PZNGqZqZ-bpEIrDiZnQaHD7J-c81o-V2W-Hlp0a17K_xCQX0l3Wmg80wSAcaBQ95hb/s1600/2014-02-13+14.45.00.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigMf28GuBFaNCvOSoarvTkBoZO-9-p38J8lv_wJo_quW-GCOdUSNg8kjRehXt-suk3iMzSJ60B77PZNGqZqZ-bpEIrDiZnQaHD7J-c81o-V2W-Hlp0a17K_xCQX0l3Wmg80wSAcaBQ95hb/s1600/2014-02-13+14.45.00.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Lubricating the underside of the plate that holds down the crown wheel</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijkEmhEU3TO0ZBh_UuVfQKiV8OWxiZ-FQa0iHdOfgsfEMopTnb4Ef3E4zJKaaSgqAaQkSCfdOuguOjBk6GxuJiNIMQLnoTdnFF6VKZsHyQ58kkQ1-FR2E0zvxRETzvJzSGvAELIW21Zu_v/s1600/2014-02-13+14.47.54.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijkEmhEU3TO0ZBh_UuVfQKiV8OWxiZ-FQa0iHdOfgsfEMopTnb4Ef3E4zJKaaSgqAaQkSCfdOuguOjBk6GxuJiNIMQLnoTdnFF6VKZsHyQ58kkQ1-FR2E0zvxRETzvJzSGvAELIW21Zu_v/s1600/2014-02-13+14.47.54.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Crown wheel installed, I also wicked some oil down underneath the return to zero operating lever above the wheel.</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEieLMMFSLkoHjKAK-SMMLx5YdxQWLzo71U8BR0qVZ2BOWShiAMPtJxDQIjQJuP8RVkERVsSgXLaSA2CklQr3KeFTQD7ryOk1BK7MWWbduA1phq4pp88760NcIEvObhMCxqdvcKzc3RFqw_m/s1600/2014-02-13+14.48.48.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEieLMMFSLkoHjKAK-SMMLx5YdxQWLzo71U8BR0qVZ2BOWShiAMPtJxDQIjQJuP8RVkERVsSgXLaSA2CklQr3KeFTQD7ryOk1BK7MWWbduA1phq4pp88760NcIEvObhMCxqdvcKzc3RFqw_m/s1600/2014-02-13+14.48.48.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Now all of the wheel pivots must be oiled. Everywhere you see a red circle must be oiled (in this case with either D5 of 9010) with the exception of the pallet jewel which does not receive oil. The barrel arbor also needs oil. This must be done on both sides of the movement</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj6xBOMthI7seyiru043VzLMKS8AHFa66-oPHj93Ix6pq_T3vojOAxL027ndJf5NuBwhJFvsdtywiorAS9nWPmY8BJ2wiBp6FhMDVgoMnp1SKhZ8QVZt4up8BtGPHvVLFLP_kb1NJk51iSZ/s1600/2014-02-13+14.57.17.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj6xBOMthI7seyiru043VzLMKS8AHFa66-oPHj93Ix6pq_T3vojOAxL027ndJf5NuBwhJFvsdtywiorAS9nWPmY8BJ2wiBp6FhMDVgoMnp1SKhZ8QVZt4up8BtGPHvVLFLP_kb1NJk51iSZ/s1600/2014-02-13+14.57.17.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here is the ratchet wheel installed, minus its screw. This is the wheel that connects directly to barrel allowing winding but also making sure it does not unwind freely due to its interaction with the click. The click in the thin metal wire you see engaging the ratchet wheel at 4 o'clock.</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiXanXgVStMoL9p2nNSQ54tBe6lXVIkcEPuav7id2Fa6uwuvn5I-LvIUbjiKfp6yS5WogNOx_BU4fKaZFxOZK0jzIVZpwvybB-Naj3Sn02I_6Z6K39L9aLU0cscoAXQ_4Qy7Slyi8H6KjE/s1600/2014-02-13+15.06.04.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiXanXgVStMoL9p2nNSQ54tBe6lXVIkcEPuav7id2Fa6uwuvn5I-LvIUbjiKfp6yS5WogNOx_BU4fKaZFxOZK0jzIVZpwvybB-Naj3Sn02I_6Z6K39L9aLU0cscoAXQ_4Qy7Slyi8H6KjE/s1600/2014-02-13+15.06.04.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Time to oil the balance. Here I have removed the in-setting and cap jewel from the block. The shock spring and balance pivot are visible. </td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7m6UJlc3Kj1_JMctcgKEWsfMiy9alp1JWstopLPBcBguW3F9Wp1bTv7OAzRtWl_sBMRAecjld2ysAR8cDWCNApsvpWNQcXsVAiUFXuNdH4IoQMyCWcV6t3LlLGuZW7nQ4qsyhi4e_F-gA/s1600/2014-02-13+15.30.33.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7m6UJlc3Kj1_JMctcgKEWsfMiy9alp1JWstopLPBcBguW3F9Wp1bTv7OAzRtWl_sBMRAecjld2ysAR8cDWCNApsvpWNQcXsVAiUFXuNdH4IoQMyCWcV6t3LlLGuZW7nQ4qsyhi4e_F-gA/s1600/2014-02-13+15.30.33.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">These parts are extremely small and very easy to lose if you are not careful. The watchmaker must put a tiny drop of oil (in this case 9010) on the cap of the assembly then sandwich these parts back together. Once installed in the watch it lowers friction on the balance pivots tremendously. </td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNaWMTk5YZ2lXyW86iStOF4UjUyPdrpdhK0FOc6N_YzXkmQb-o-QuxDIJfWNQ_9kOB_eBjMek-6jaQW80flZfwVHjTmZBuon7RFOKTYfrSuZ1NfUG6yVT4x3U3_VN-ZCiIMf0E0KrkoH2m/s1600/2014-02-13+15.43.37.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNaWMTk5YZ2lXyW86iStOF4UjUyPdrpdhK0FOc6N_YzXkmQb-o-QuxDIJfWNQ_9kOB_eBjMek-6jaQW80flZfwVHjTmZBuon7RFOKTYfrSuZ1NfUG6yVT4x3U3_VN-ZCiIMf0E0KrkoH2m/s1600/2014-02-13+15.43.37.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here I am setting up the regulating pins for proper timekeeping, it's hard to see but the hairspring must be perfectly centered between the regulating pins before you close then to be just shy of touching the spring. This guarantees the best time performance of the watch in differnt orientations.</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8ANj6Zf6MsEa2h4hFigpiRoKT0dvpWM4s4B3qCLvTTxPDlOqeWa_wiJvUYpoRkgcx8Taw_AqpfpyhIS_tdvYALu1lm8cU3p7k9wrr3hiJMvxV_ers5h1fm3RIUcVSDqY1dGq2S5GkSxvy/s1600/2014-02-13+15.47.01.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8ANj6Zf6MsEa2h4hFigpiRoKT0dvpWM4s4B3qCLvTTxPDlOqeWa_wiJvUYpoRkgcx8Taw_AqpfpyhIS_tdvYALu1lm8cU3p7k9wrr3hiJMvxV_ers5h1fm3RIUcVSDqY1dGq2S5GkSxvy/s1600/2014-02-13+15.47.01.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Time to make sure the base movement is keeping good time before moving on with the chronograph assembly</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEin35zziWiWPZJegtQP1olWdX0vxX0wNLbleFmDPoU5U-12N_SZRj4ta9MBHXLMv90B47NnNtciB1EgQ6BXn2JWhsgVeHxDuIN6x4_GE3HLvHJRjJrMVgrPk7Euh-edhr3aQTuWw87winDA/s1600/2014-02-13+15.58.18.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEin35zziWiWPZJegtQP1olWdX0vxX0wNLbleFmDPoU5U-12N_SZRj4ta9MBHXLMv90B47NnNtciB1EgQ6BXn2JWhsgVeHxDuIN6x4_GE3HLvHJRjJrMVgrPk7Euh-edhr3aQTuWw87winDA/s1600/2014-02-13+15.58.18.jpg" height="180" width="320" /> </a></td><td style="text-align: center;"> </td></tr>
<tr><td class="tr-caption" style="text-align: center;">The delta is good for this movement at 6.2, amplitude is okay at 262 between all positions and rate is slightly fast, but we save final regulation for the completed watch.</td></tr>
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com3tag:blogger.com,1999:blog-5789334508897903110.post-49358818688806280112014-01-17T13:27:00.001-08:002014-01-17T13:28:27.100-08:00FridayFridays are an odds and ends sort of day in watch school. We only have class until noon and the morning hours are spent working on whatever you want. We either play catchup with our watch overhauls or work on projects. <br />
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I have been working on an Atmos clock. The technology of this clock allows it to be wound just by changed in temperature and barometric pressure. Properly serviced one of these clocks can run for 30 years uninterrupted. Last week I had installed the fine filament spring (seen below) into the regulator mechanism. Today I ran everything through a couple cycles in the ultrasonic. The main clock framework needs to be soaked in acetone to dissolve traces of the original laquer finish. Once this is complete I can reassemble the clock.<br />
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Finally we've been working on gear train calculations in class. Most of these are just basic algebra, but I hate hand-writing anything so I have begun to program these equations into my calculator which will save me a lot of time down the road.<br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgpGxCCZBQ3Tw79VmnDEVlG_shPnzM9cZ1ZSrxeThTFlxQtE4Op5VSbv9fTAXEQfnvnNvETSMUaldrxOoFOYc7MjQcGF-4RpIzatjAv4jhe77P34n9QQ4yw5bIAqWrVzGciPfIpRamOMzUQ/s1600/2014-01-17+08.53.15.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgpGxCCZBQ3Tw79VmnDEVlG_shPnzM9cZ1ZSrxeThTFlxQtE4Op5VSbv9fTAXEQfnvnNvETSMUaldrxOoFOYc7MjQcGF-4RpIzatjAv4jhe77P34n9QQ4yw5bIAqWrVzGciPfIpRamOMzUQ/s1600/2014-01-17+08.53.15.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Numbers and letters, together?!</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOyAU6E2n7m6K9V2vL9wYeE-q7vroRtmCRL6WCYczELL0YFDe1n9IoJ5se9ImqZ_6iw-moY-Chs-GNWphdvnDTFcxUyR2XZT9fVdKsyxZblR8yOX5rPmbEIV9PPc2iu0Kq5_TLRwm06Z8i/s1600/2014-01-17+08.42.57.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOyAU6E2n7m6K9V2vL9wYeE-q7vroRtmCRL6WCYczELL0YFDe1n9IoJ5se9ImqZ_6iw-moY-Chs-GNWphdvnDTFcxUyR2XZT9fVdKsyxZblR8yOX5rPmbEIV9PPc2iu0Kq5_TLRwm06Z8i/s1600/2014-01-17+08.42.57.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Atmos balance assembly with spring</td></tr>
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-40270633186223218982014-01-16T19:39:00.000-08:002014-01-17T06:38:32.989-08:00ChronographsWe've started working on chronographs in class. These are the most complex watches we are going to touch during our watchmaking educations at NSCC. The movement being used to introduce the class to the chronograph is the well built and extremely elegantly designed Lemania 861. The other primary movement which we will be working on, and which is the focus of the SAWTA 4 test is the eta 7750 which we start in a couple weeks. <br />
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The chronograph mechanisms add a layer of complexity on what is basically a standard watch movement. All of the normal adjustments (hairspring, endshakes, pallet adjustments) are all identical. What I'm working on figuring out now are the oiling and servicing of the chronograph components. <br />
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I will be working on these watches for the remaining 7 or so months of my education at the watch technology institute. The goal is to achieve a total feel and comfort for working with these common mechanisms. I will try and post a detailed overview of a complete chronograph servicing in the near future.
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglJNhhux2MFWHMWb6imX7-6XRAPOyf77Njfk2bCYfIXibc0IV5LBypIDnPGtTqXCjuV8XS5hYbe1XahyooGD5XHtYp_Wak35QC0jYKatUqrijwRsLJGmNPDld3FWCPwu7YdOSF1LZhyphenhyphenOXU/s1600/2014-01-13+12.54.45.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglJNhhux2MFWHMWb6imX7-6XRAPOyf77Njfk2bCYfIXibc0IV5LBypIDnPGtTqXCjuV8XS5hYbe1XahyooGD5XHtYp_Wak35QC0jYKatUqrijwRsLJGmNPDld3FWCPwu7YdOSF1LZhyphenhyphenOXU/s1600/2014-01-13+12.54.45.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">A lot more components!</td></tr>
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<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRpg0h8iRNaK_lWsHJIuQwoGaIb0qNwtlkFKCfhqfuZMukL91I3M6zxJ74YicE4hXgPoW8Dk89d2poalMbcIKF2soZtcjlb1wciL3E6PYcSZVeEdeW7xejqVO1WoxZnIzk0OC5EDJT7TYW/s1600/2014-01-16+09.20.44.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRpg0h8iRNaK_lWsHJIuQwoGaIb0qNwtlkFKCfhqfuZMukL91I3M6zxJ74YicE4hXgPoW8Dk89d2poalMbcIKF2soZtcjlb1wciL3E6PYcSZVeEdeW7xejqVO1WoxZnIzk0OC5EDJT7TYW/s1600/2014-01-16+09.20.44.jpg" height="320" width="180" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The technical guide, this is the page illustrating the assembly and oiling of the base timekeeping mechanism</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTSFZPP6v9sImxrTi272aTYLgQdOxDQAEffWMkxI9CAEP2vpWGFT8Z4_DJEea3AikinVOEgUk_EHzevLhyphenhyphenQo1RM-2yh4DLxN_fVNb7xXUra7r0YV89BOUd4XwNIsK_sw_j-2h8uU4_v73S/s1600/2014-01-16+09.20.56.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTSFZPP6v9sImxrTi272aTYLgQdOxDQAEffWMkxI9CAEP2vpWGFT8Z4_DJEea3AikinVOEgUk_EHzevLhyphenhyphenQo1RM-2yh4DLxN_fVNb7xXUra7r0YV89BOUd4XwNIsK_sw_j-2h8uU4_v73S/s1600/2014-01-16+09.20.56.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The pallet fork endshake had to be adjusted on my watch. This is the same operation as on any other manual or automatic watch.</td></tr>
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-27855795124371648412014-01-06T12:06:00.002-08:002014-01-06T12:09:11.169-08:00Useful MnemonicOne of the things we are expected to memorize in watchmaking school are the 8 factors that affect the isochronism of a watch.
With the help of a 'scrabble cheat' program on the internet, I came up with a very helpful mnemonic to remember these factors.
Just remember to 'preempt friction'
<br />
<br />
P - Poise of hairspring
<br />
R - Regulating pins
<br />
E - Escapement
<br />
E - External Influence
<br />
M - Magnetism
<br />
P - Poise of balance
<br />
T - Temperature
<br />
and
<br />
Friction
Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com1tag:blogger.com,1999:blog-5789334508897903110.post-48635432141259482522013-12-26T13:42:00.001-08:002013-12-26T13:42:12.810-08:00Oil SpillThe last thing I tackled this last quarter was to change the battery on an oil-filled quartz watch. Whoever had attempted this in the past has let an air bubble into the case and the watch had stopped.<br /><br />After installing the battery the watch was still not working. I am used to working on these movements. It's essentially the same watch movement we had to complete on our SAWTA 2 tests. So i took everything apart and during the process I dinged the coil and ruined it. Replacing the board was not an option because this is a special 3 volt board with a custom battery holder.<br /><br />No big deal, we have plenty of extra coils around. So then began the painstaking process of melting off the existing solder and epoxy and soldering on a new coil. This is difficult because the wires are VERY fine. After about a half an hour I was able to get a new working coil installed.<br /><br />This process is incredibly messy. There was oil everywhere, all over my bench and my tools. It was a very strange feeling getting oil all over a newly cleaned movement as that's usually exactly what you are trying to avoid. At least putting the movement back together was quick because you didn't have to worry about oiling anything.<br /><br />Once back together and ticking once again I refilled with oil, vacuumed most of the air out and we now have a watch that only has almost microscopic bubbles suspended in the mineral oil. I've not figured out how to remove those yet, I'm guessing a stronger vacuum pump would help with that.
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0tzR0DTavF-6rHZV7__Kp2E7DVarvUV0msLQL45sycMtKfnw9Zj7IV-wcuOJ0V6MT1FF1_r7vzE4tLx7_klGkMf3RJlYXdHkY4Ks_aEPJWOb5IGoTEuizV_Lj0NqsNiEt4Jc7J4mEvaHp/s1600/2013-12-09+07.39.56.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0tzR0DTavF-6rHZV7__Kp2E7DVarvUV0msLQL45sycMtKfnw9Zj7IV-wcuOJ0V6MT1FF1_r7vzE4tLx7_klGkMf3RJlYXdHkY4Ks_aEPJWOb5IGoTEuizV_Lj0NqsNiEt4Jc7J4mEvaHp/s320/2013-12-09+07.39.56.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Oil-filled watch, complete with bubble</td></tr>
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<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjIScJI2mziBd2SUJxiYnZc4pCht8gVv6oIBZaCmn9JonLoNaa3gMSOUV2wFjz1CPB31xWV-XPTnM7p8IkTtV8cS7Q91kYo7gY2mDB9CK6YJnn2a-rae8qHdJoKDIVsSJ42HagUYxWWzvcN/s1600/2013-12-09+07.43.36.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjIScJI2mziBd2SUJxiYnZc4pCht8gVv6oIBZaCmn9JonLoNaa3gMSOUV2wFjz1CPB31xWV-XPTnM7p8IkTtV8cS7Q91kYo7gY2mDB9CK6YJnn2a-rae8qHdJoKDIVsSJ42HagUYxWWzvcN/s320/2013-12-09+07.43.36.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Even with a new battery the watch did not run, it needed an ovehaul</td></tr>
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<br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigSD_oMH004NWECjlwdr5zmsZOXTmzflHgwFpCX-qjDa9DQa55EZ5OLUPvvyS0pLTXZFaW2JYTvc8Q18QHkHZkmCcW2DZYk3x7n37V7Q-OZvk8dgKmSEMbdi9-AIuxa7VpVyR4y8FFMG8F/s1600/2013-12-09+07.45.07.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigSD_oMH004NWECjlwdr5zmsZOXTmzflHgwFpCX-qjDa9DQa55EZ5OLUPvvyS0pLTXZFaW2JYTvc8Q18QHkHZkmCcW2DZYk3x7n37V7Q-OZvk8dgKmSEMbdi9-AIuxa7VpVyR4y8FFMG8F/s320/2013-12-09+07.45.07.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">My vacuum platform, made mostly from scavenged materials helped pull some bubbles out of the oil. The air compressor's pump does not draw a very efficient vacuum though so it was not as effective as it should have been. We need a proper vacuum pump.</td></tr>
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-77221698014804429182013-12-05T15:12:00.001-08:002013-12-05T16:36:27.005-08:00SAWTA 3<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCFs7ypg2kyIhcsALxCgZ2R0V_7qEW9NiDEjoTF0zuwfyzwRUFaHdRuPqmXI_ybjA8S41w0LunXKauTaEv81PPHp-ITkFAHd8L49rhx_xE3rYSHEkSeh7CKIgxHxNpT6Hv2hk0_WMe199G/s1600/SAWTA_PMS.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCFs7ypg2kyIhcsALxCgZ2R0V_7qEW9NiDEjoTF0zuwfyzwRUFaHdRuPqmXI_ybjA8S41w0LunXKauTaEv81PPHp-ITkFAHd8L49rhx_xE3rYSHEkSeh7CKIgxHxNpT6Hv2hk0_WMe199G/s320/SAWTA_PMS.jpg" width="319" /></a></div>
<div dir="ltr">
Three down, one to go!</div>
<div dir="ltr">
I passed my SAWTA 3 exam this week. The test involves 4 parts:</div>
<div dir="ltr">
1. Overhauling, repairing and casing of a 2824 <br />
2. 15 question theory<br />
3. Case refinishing<br />
4. Bracelet refinishing</div>
<div dir="ltr">
Things went very smoothly this time around. The only critique the examiner had for my watch was that I over-oiled the crown wheel and was a little light on the oiling for my lower balance pivot. Besides that I got full marks!</div>
<div dir="ltr">
The quarter is nearly finished, the last project I have on my plate is a cell change in an oil-filled quartz watch. I am devising a vacuum system to make this simpler. I will post soon. </div>
Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-72994481478815276272013-11-26T18:08:00.001-08:002013-11-26T18:08:19.437-08:00Fixing a Levin ToolrestThe detent screw on one of our Levin lathes was stripped out rendering the part useless. For my school volunteer hours this quarter I made a new post and installed it into the slide attachment. <br />
<br />
The primary difficulty here was turning down the chunk of steel on a lathe using a 3-jaw chuck which didn't give me the best grip. Unfortunately we don't have a lathe that can use a regular collet to accept these larger diameters. Despite the cutter digging in and dislodging the workpiece on a couple of occasions I was able to turn the lower diameter down to where I could use a normal collet to hold the piece and finish forming the top. <br />
<br />
To cut out the core I first used a end mill followed by some reamers on the Bridgeport milling machine in the basement. Finally, the detent hole and threads were formed using a drillbit and a simple tap.<br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1wTsHCpfo8GDeGKK6isJZB3eqFUNlLtIL-xYz68fXjMlhzV5_RJfrD-0G52bD2Z170RQCOuxkZRGnlR3qf1pQ2S-2bev6nSAifQl3cDf8Bib0uQ_-r3g-_t9vKtbZGs-Ek4R0wm6SdqyQ/s1600/2013-11-26+16.18.45.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1wTsHCpfo8GDeGKK6isJZB3eqFUNlLtIL-xYz68fXjMlhzV5_RJfrD-0G52bD2Z170RQCOuxkZRGnlR3qf1pQ2S-2bev6nSAifQl3cDf8Bib0uQ_-r3g-_t9vKtbZGs-Ek4R0wm6SdqyQ/s320/2013-11-26+16.18.45.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The finished post, pressed into position</td></tr>
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-72217928200039505782013-11-22T13:31:00.001-08:002014-02-27T17:06:48.415-08:00Overhaul/SAWTA 3 PracticeDuring the last couple of weeks I have been busy practicing overhauling and troubleshooting automatic movements. Most commonly we've been working on the ETA 2824 as that's most likely the watch we'll receive for our SAWTA 3 examinations.<br />
<br />
During the examination it is our task to troubleshoot issues with the watch which have been introduced by the examiners. During dis-assembly you identify and fix the problems, then all that remains is to clean the watch and recase it with a high level of accuracy and cleanliness as both will be factors in the grading.<br />
<br />
Besides the overhaul there is a written portion of the exam and a polishing exercise, both of which are proceeding nicely for.<br />
<br />
I have taken some pictures of a practice overhaul and will offer a brief explanation of some of the steps below. <br />
<br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgPtvmt6e6c6pDfqmMzEzeUNesn3jCQfdqBSvIire1nfUx2CB-5n0fMN8maf8_3kmX3u5lflhiVyr4X0pkWIeOonIHNjWZcclB6Ml3pqwT9wUA6U8a8h5oUlx1qNIyTpGl_iQVBvx47fYti/s1600/2013-11-18+07.41.52.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgPtvmt6e6c6pDfqmMzEzeUNesn3jCQfdqBSvIire1nfUx2CB-5n0fMN8maf8_3kmX3u5lflhiVyr4X0pkWIeOonIHNjWZcclB6Ml3pqwT9wUA6U8a8h5oUlx1qNIyTpGl_iQVBvx47fYti/s320/2013-11-18+07.41.52.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The caseback has been removed</td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQDu_KAEaBZOpYdI24Qc3oRDT5X4WZeDXCOuO92M5qyWvVirpqOCyVoYtYOXqd5nQU-p675J_Px7ocIekQ0IVjqV7KDlMdbhrPgzq0YV8COkE1YrDNW3pykK2ulpUyZnFbAxrD23TNHKL_/s1600/2013-11-18+07.44.06.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQDu_KAEaBZOpYdI24Qc3oRDT5X4WZeDXCOuO92M5qyWvVirpqOCyVoYtYOXqd5nQU-p675J_Px7ocIekQ0IVjqV7KDlMdbhrPgzq0YV8COkE1YrDNW3pykK2ulpUyZnFbAxrD23TNHKL_/s320/2013-11-18+07.44.06.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The rotor and stem have been removed, the movement can now come out of the case</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhAri9F7ZP2q0zkNhA3PzDMgEXl3QSdY7V9dUKGrjoTrn5TUd_YRyu97-wmek6E0FOYjcquRs04w01h3Kr3GySj6AcuAgBwZWFY1b5-4JBQE_KJVuv21JqfWCdOhrhTUSgNtti4cET1UnS0/s1600/2013-11-18+07.45.41.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhAri9F7ZP2q0zkNhA3PzDMgEXl3QSdY7V9dUKGrjoTrn5TUd_YRyu97-wmek6E0FOYjcquRs04w01h3Kr3GySj6AcuAgBwZWFY1b5-4JBQE_KJVuv21JqfWCdOhrhTUSgNtti4cET1UnS0/s320/2013-11-18+07.45.41.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Removing the hands while protecting the dial and hands with some plastic</td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrSJbbKA03x7ZegNyUUMiw-x4dweG-lTFQL9dLXhDlnP4RaoGEVlEQZ__WyZSGgZLf5UBKRBOIPLFmsIWFSBdE-05l1p78TfyUXRY7lW-4EHo43TGUruJwWTuzoY6v3eEnIf8A9pzuEeLX/s1600/2013-11-18+07.49.56.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrSJbbKA03x7ZegNyUUMiw-x4dweG-lTFQL9dLXhDlnP4RaoGEVlEQZ__WyZSGgZLf5UBKRBOIPLFmsIWFSBdE-05l1p78TfyUXRY7lW-4EHo43TGUruJwWTuzoY6v3eEnIf8A9pzuEeLX/s320/2013-11-18+07.49.56.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The dial-side with the dial and date ring removed, nothing to repair on this side!</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7k_oMJ8NzfWqv-5_mD0nrSo6LY44Kb7Wq-NdBD2tBTLW_0VQuYlxIJlIJoaxrUlbL16jFlko1216Op3iXj7PXQ3_CJ0GWSucqG3jz-phNvpnycR5ISphGebogRRunvJrC-pUejQbiXii6/s1600/2013-11-18+07.52.37.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7k_oMJ8NzfWqv-5_mD0nrSo6LY44Kb7Wq-NdBD2tBTLW_0VQuYlxIJlIJoaxrUlbL16jFlko1216Op3iXj7PXQ3_CJ0GWSucqG3jz-phNvpnycR5ISphGebogRRunvJrC-pUejQbiXii6/s320/2013-11-18+07.52.37.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The hairspring is not centered, the coil spacing near 11oclock are wide and near 5 they are narrow, which will need to be corrected by bending the spring</td></tr>
</tbody></table>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJ3SWyUw6nWJPgTBtTzTTBrHnLRIAHPr0RImwwq4VcZyRJQhO5bvUzZnOi8F7UMEZxdBEQ3ubjKaDP4RpSzCAomuQB5jPIwqBlX030VMxZul2oCPCBTRYg7cB1pU97aBnN-R1_4UffY-Zg/s1600/2013-11-18+07.52.50.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJ3SWyUw6nWJPgTBtTzTTBrHnLRIAHPr0RImwwq4VcZyRJQhO5bvUzZnOi8F7UMEZxdBEQ3ubjKaDP4RpSzCAomuQB5jPIwqBlX030VMxZul2oCPCBTRYg7cB1pU97aBnN-R1_4UffY-Zg/s320/2013-11-18+07.52.50.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Another shot, the dogleg in the spring near 12 o clock seems is where we will perform the correction</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFLNAgeNElEgzlE68jAZf0uXWC1yLik8Be-zYztKUAlkZPHd8LaOYE7Hn4KFToeSEL8zvLxDr5dYeAL63Ab66rYYU-AZRPacHPJWjADeiTY2Rf8-hOuldXEo5hXYAsgPHZfDq0rWmP9h5M/s1600/2013-11-18+07.54.47.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFLNAgeNElEgzlE68jAZf0uXWC1yLik8Be-zYztKUAlkZPHd8LaOYE7Hn4KFToeSEL8zvLxDr5dYeAL63Ab66rYYU-AZRPacHPJWjADeiTY2Rf8-hOuldXEo5hXYAsgPHZfDq0rWmP9h5M/s320/2013-11-18+07.54.47.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The entry pallet stone is not level in the fork, it has dipped out of its holder and needs to be reset so it can engage the escape wheel</td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgShc7jbKZ42CKeVa2AN6xHmDGOpcNgo2uXvGFGELbimXt65Id9fec5N7zVR2GJ0paIIxJ54ks9uiq9jTqj1webd-KscXqEB3b6xrm8dQqi8N0g5aF_BUkyoGL5iLCrYuZpHqmzca8tg4O_/s1600/2013-11-18+07.58.30.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgShc7jbKZ42CKeVa2AN6xHmDGOpcNgo2uXvGFGELbimXt65Id9fec5N7zVR2GJ0paIIxJ54ks9uiq9jTqj1webd-KscXqEB3b6xrm8dQqi8N0g5aF_BUkyoGL5iLCrYuZpHqmzca8tg4O_/s320/2013-11-18+07.58.30.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The tilted stone</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3TWlQKrdJ7FqORZeQ3zpFc8ypUh1tRpIhOtkRrmzZtAAE7FlwD4WKp4i5DX4LMcIOKre3g06uefyH1x3v4omx_yM2KwkhMw8-10KGIYrLYugqiHksnpvXakX3F-KCvav7aSSQEZKMuc9j/s1600/2013-11-18+08.00.32.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3TWlQKrdJ7FqORZeQ3zpFc8ypUh1tRpIhOtkRrmzZtAAE7FlwD4WKp4i5DX4LMcIOKre3g06uefyH1x3v4omx_yM2KwkhMw8-10KGIYrLYugqiHksnpvXakX3F-KCvav7aSSQEZKMuc9j/s320/2013-11-18+08.00.32.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Using an electric heater and this expensive gauge it is easy to move the stones in or out of the pallet fork micro-metric amounts for precise depthing correction which is essential for a well-running watch</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjlxE6rLT3AvYegic8C9d4fIzHI3WYgOWHGrn_Wd6sPrF6UeYknWaoj1y9R6zR2JpD1epyQUJwvZ7BWYvJHbjMBUpw3kLgtrR2aOCvKeHt_xK7HbsHtua6Lqq7zvbnyHT8I8eGBihPK8vNs/s1600/2013-11-18+08.36.38.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjlxE6rLT3AvYegic8C9d4fIzHI3WYgOWHGrn_Wd6sPrF6UeYknWaoj1y9R6zR2JpD1epyQUJwvZ7BWYvJHbjMBUpw3kLgtrR2aOCvKeHt_xK7HbsHtua6Lqq7zvbnyHT8I8eGBihPK8vNs/s320/2013-11-18+08.36.38.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The endshake (up and down movement) of my pallet fork was too small, so here I am pressing the jewel back into its bridge. Once the jewel was flush with the bridge the endshake was back within tolerance</td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmG2ljkoMfLYLctbxo6adqoMBjRdd9YZIz2NXmsUtmFfbIUbwGr0saug9k6ojvqTrenE34t4zWn9OULcib7hNVWPaV2_7uAUeVbp_jEMuULkYOMRp6rJidxr6RiUBYYT5xAXJ29iM08yud/s1600/2013-11-18+09.11.00.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmG2ljkoMfLYLctbxo6adqoMBjRdd9YZIz2NXmsUtmFfbIUbwGr0saug9k6ojvqTrenE34t4zWn9OULcib7hNVWPaV2_7uAUeVbp_jEMuULkYOMRp6rJidxr6RiUBYYT5xAXJ29iM08yud/s320/2013-11-18+09.11.00.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here I am adjusting the barrel endshake, which was also much too small. Too little endshake reduces freedom of the wheels and introduces extra friction into the mechanism.</td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhotVAs5tD62n8Cx7DuAMzAWxgHna40WxGUIvVeRtB_4CHHvzBwDiJ_ZEj7mdbt3SeAEZaJ5ICs92hHV_BBjnOaK5codU6MYdbIDKegjvbYDUCeuXzmNwya48XnKB9MzY2A_T43Qh67sjsj/s1600/2013-11-18+09.21.56.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhotVAs5tD62n8Cx7DuAMzAWxgHna40WxGUIvVeRtB_4CHHvzBwDiJ_ZEj7mdbt3SeAEZaJ5ICs92hHV_BBjnOaK5codU6MYdbIDKegjvbYDUCeuXzmNwya48XnKB9MzY2A_T43Qh67sjsj/s320/2013-11-18+09.21.56.jpg" height="320" width="180" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here I have corrected the centerdness of the hairspring, looks slightly off here due to the balance being loose, once installed it is quite good. Once the watch was reassembled the instantaneous rate and running characteristics of this movement were within 100% tolerance for this movement</td></tr>
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Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0tag:blogger.com,1999:blog-5789334508897903110.post-50837730071616777052013-10-30T17:10:00.001-07:002013-10-31T01:05:14.877-07:00Forming a hairspringThis week I've been working on forming my own 'balance complete'. All
you get are the parts you need: balance wheel, balance staff, collet,
roller table, hairspring, and pins. First one must rivet the balance wheel to the staff, then press on the roller table and make sure they are true (flat). Then using a ruby-jawed vice you must 'poise' the balance to make sure the weight is evenly distributed along the whole diameter of the wheel.<br />
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Once the wheel is set you need to take the hairspring and either snap it or pin it to the collet, press the collet onto the balance wheel and then, using a counting platform find the 'counting point' of the spring. This is the point where the springs length, when paired with a certain balance produces the desired vibrations, in this case 18,000/hr. Once this point has been located, you mark the position by clipping off the excess spring 1 coil further along the spring (as the spring is too long for the job anyway) <br />
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Poising the hairspring is the tricky part, it involves lining up the point of attachment of the spring to the collet and the counting point as close as possible on one side of the hairspring. This is accomplished using 'Leroy's method'. Basically you take the angle from the counting point to the point of attachment following the spring (a) then take (a/3)=b, then take (b+a)= new point of attachment. So just take your current point of attachment, move forward along the spring in that many degrees to find your new point of attachment. If you measured correctly it will poise the spring. Keep in mind you want to subtract about 60dgs from the above number for your actual cut because you need extra spring to fit inside the collet.<br />
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So now you should center and flatten your hairspring on its collet then put a bridge with a pinnable stud in a watch. Push your hairspring through the stud and loosely pin it there. Get it into the ballpark, meaning your new counting point (which you have now checked using the counting platform) should be in the vicinity of the regulating pins. Then use your timing machine in frequency mode while slowly adjusting the amount of spring coming through the stud. Once you are within 10 vibrations either side of your target drive the pin home and cut off excess spring.<br />
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Now you can busy yourself with forming the dogleg which will interact with the pins, lead to the stud and allow the spring to breathe more freely. I did this using a tool I created for this particular job.<br />
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Lastly, install everything into the watch, make sure everything is still flat and centered, set up your regulating pins and then regulate the watch to a good time. If everything went smoothly and you didn't muck anything up you now have a working hairspring.
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiE_yJjO2XhtoSVdIPm_oHUv4LMTpIVhbbqcUasNP82O2AdAO7DOv8p66NO5zBR0KJ015w43HyiR6ZSzaixIJtbJk69AW80YUmIaZq1ywVjoPSkr72XqNjuyyopiKhZslE_gROj-k2WKt1l/s1600/2013-10-28+09.00.29.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiE_yJjO2XhtoSVdIPm_oHUv4LMTpIVhbbqcUasNP82O2AdAO7DOv8p66NO5zBR0KJ015w43HyiR6ZSzaixIJtbJk69AW80YUmIaZq1ywVjoPSkr72XqNjuyyopiKhZslE_gROj-k2WKt1l/s320/2013-10-28+09.00.29.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Truing the balance wheel</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOqK9fuHEGqf2Fp921SqNBvhIL9H78cQIfthaMlGYooy9RqrfpIvDyqiZUCWHLMu74Umij7LaLfcwLCjXw8xOsv-V-SikPgAytiLzaEKROjrArz4O-tBJ9g-mtnvDgUL40HALLrsNEqliz/s1600/2013-10-28+09.09.06.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOqK9fuHEGqf2Fp921SqNBvhIL9H78cQIfthaMlGYooy9RqrfpIvDyqiZUCWHLMu74Umij7LaLfcwLCjXw8xOsv-V-SikPgAytiLzaEKROjrArz4O-tBJ9g-mtnvDgUL40HALLrsNEqliz/s320/2013-10-28+09.09.06.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Pressing on the roller table</td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh8-gIvQ-LalsOaYgtYGynUEJfZF4QeGxQ2j3A6jKEBa420k9TlAYRHgkh_etK0ghnjN8j0TkXiFj5sEXMPjGz2ESuBxzu2F7napCW5QU9M-NmjVPYwJ3F93pXG2N30PZg4N9Ir5MkPFte2/s1600/2013-10-28+09.12.21.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh8-gIvQ-LalsOaYgtYGynUEJfZF4QeGxQ2j3A6jKEBa420k9TlAYRHgkh_etK0ghnjN8j0TkXiFj5sEXMPjGz2ESuBxzu2F7napCW5QU9M-NmjVPYwJ3F93pXG2N30PZg4N9Ir5MkPFte2/s320/2013-10-28+09.12.21.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Using the poising tool </td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijCIDcNHRG2e-9nVtZedgKwqFpMMnzy56fpvJpwoQ6M4XMdV58ynmYaRKMklRTM_wgv7PbvxagUhwj73cUhqRKzYamvuGj2HLfTbihnfgl50RLyTI9ZxQSb52o6sJTTQUDzUytH5nMYjfe/s1600/2013-10-28+09.56.04.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijCIDcNHRG2e-9nVtZedgKwqFpMMnzy56fpvJpwoQ6M4XMdV58ynmYaRKMklRTM_wgv7PbvxagUhwj73cUhqRKzYamvuGj2HLfTbihnfgl50RLyTI9ZxQSb52o6sJTTQUDzUytH5nMYjfe/s320/2013-10-28+09.56.04.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">More poising</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEivRzNTies_FM1B9Xl-HmwHOwSUkJQtZX3hfb93lwq6VlA9oX7_HwzdVIVKObyIBTRxGay3OyYUXe3-kvSMoAeHDB_8qd2P11gEph7JLQnzz7QKCvMFAoL3xsMCOvR2Q3ca1AECjLE-ztYl/s1600/2013-10-28+10.48.08.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEivRzNTies_FM1B9Xl-HmwHOwSUkJQtZX3hfb93lwq6VlA9oX7_HwzdVIVKObyIBTRxGay3OyYUXe3-kvSMoAeHDB_8qd2P11gEph7JLQnzz7QKCvMFAoL3xsMCOvR2Q3ca1AECjLE-ztYl/s320/2013-10-28+10.48.08.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Pinning the collet to the hairspring</td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjFu3Uwc_xUbptXZP_B-vjMu_zeQ_JhSvQA2QGtcA_0rJU1yShSKodg6X4u0q5SA8KsuzjVjP8n5lYoaKCjMUoPUkVQtDeFjDgQliEdWaFdjp6svTLkUaVdEileADO8cPhzJiYjpld8mf_x/s1600/2013-10-28+14.34.25.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjFu3Uwc_xUbptXZP_B-vjMu_zeQ_JhSvQA2QGtcA_0rJU1yShSKodg6X4u0q5SA8KsuzjVjP8n5lYoaKCjMUoPUkVQtDeFjDgQliEdWaFdjp6svTLkUaVdEileADO8cPhzJiYjpld8mf_x/s320/2013-10-28+14.34.25.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The vibrating tool</td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7Zkbibaj8uCw-S5w4FhqJ5_qsx-AB6tU-QbHMvhSGBI76K1Mna4fsNYdmgN3-NQqn3kbOikJ9FaMCMXG4XWXROrhyhJyjIuz3uoItnubjmB7LkvNaH_Qm8jceYpLs2tB9Z9q7vC0UbwYl/s1600/2013-10-28+14.40.53.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7Zkbibaj8uCw-S5w4FhqJ5_qsx-AB6tU-QbHMvhSGBI76K1Mna4fsNYdmgN3-NQqn3kbOikJ9FaMCMXG4XWXROrhyhJyjIuz3uoItnubjmB7LkvNaH_Qm8jceYpLs2tB9Z9q7vC0UbwYl/s320/2013-10-28+14.40.53.jpg" width="180" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Another shot of the vibrating tool</td></tr>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxN_Ru7mqF1EPhqcJG-UC8ZMHL6xmwimmN4KlvHo5yi3YRWZdILMuSKy2zyNbxcly4ASULtQrRqWnhUC1dCj6J1XIU-8PhpuF5zX6kp3S6vk239HjKgRbrePlUaVyXGjy_VVv7l40lRdxi/s1600/2013-10-29+14.09.41.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxN_Ru7mqF1EPhqcJG-UC8ZMHL6xmwimmN4KlvHo5yi3YRWZdILMuSKy2zyNbxcly4ASULtQrRqWnhUC1dCj6J1XIU-8PhpuF5zX6kp3S6vk239HjKgRbrePlUaVyXGjy_VVv7l40lRdxi/s320/2013-10-29+14.09.41.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Here's the first hairspring I made in the watch, it keeps fairly good time for a first try!</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiX5N98xHaaXzd9mxdkiw5LxeCb-y_0FzcBz4aJkVE_aSIemR0sO3ly9Fo9toKkcHOjO8Vo8o7ZaLPJU3ukUqjjWJ3kFcqd1DPd8S5uIG1hS9Juq9lgMsdhi8JQx3_u1s_hsad6ePxyVPlv/s1600/2013-10-30+16.06.14.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiX5N98xHaaXzd9mxdkiw5LxeCb-y_0FzcBz4aJkVE_aSIemR0sO3ly9Fo9toKkcHOjO8Vo8o7ZaLPJU3ukUqjjWJ3kFcqd1DPd8S5uIG1hS9Juq9lgMsdhi8JQx3_u1s_hsad6ePxyVPlv/s320/2013-10-30+16.06.14.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">This is a neat little steel template I created to help in forming the dogleg accurately. The desired radius is scribed into the hardened metal and the 120dg desired angle is also scribed. One simply has to screw the hairspring collet into the recessed hole then begin manipulation. The steel is hardened to prevent tweezers scratching the metal while working.</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSMgVPQ_VoxIN2G95_56B1gcGZXrdDOhr64ZwNA7BP_Vdnv2GOEzeaK3ICYi_9itwMbSqokCB0TNxdPx0QWeXpUjB5NDefFlRd5b1qIybbZq1Co5Nu9p394lXCw6wLQoU3iWGo8fuULBhP/s1600/2013-10-30+15.42.39.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSMgVPQ_VoxIN2G95_56B1gcGZXrdDOhr64ZwNA7BP_Vdnv2GOEzeaK3ICYi_9itwMbSqokCB0TNxdPx0QWeXpUjB5NDefFlRd5b1qIybbZq1Co5Nu9p394lXCw6wLQoU3iWGo8fuULBhP/s320/2013-10-30+15.42.39.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Finally a old Elgin I fixed up for a customer. When it came in it had no minute hand, crystal and was not running. Works great now.</td></tr>
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<br />Andrewhttp://www.blogger.com/profile/01276937264012138865noreply@blogger.com0