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yes the pocketwatch database shows quite a spread in those serial numbers. With the watches typically made in batches and even in a batch from the beginning to the end there be some variations. Then you have approximately a 10 year difference between the two yes some of the stuff will probably not fit especially escapement components as there usually adjusted at the time of manufacturing and of course manufacturing tolerances were improving with time. https://pocketwatchdatabase.com/search/result/elgin/36764469 Grade: 315 Model: 3 Class: 114 Estimated Production Year: 1937 Run Quantity: 4,000 Grade/Model Run: 310 of 329 https://pocketwatchdatabase.com/search/result/elgin/19110954 Grade: 315 Model: 3 Class: 114 Estimated Production Year: 1917 Run Quantity: 2,000 Grade/Model Run: 127 of 329 -
Hope you let the mainspring completely unwind before removing the bridge? Use not only a screwdriver, but a pair of good tweezers with curved ends. This will allow to move various sides of the bridge straight up while keeping it in parallel with the main plate. If you use a screwdriver only and top pivot is stuck, then a bridge is being lifted under angle and then you hear that "horrible click". Usually it takes only one instance to learn such lesson in life 😅 -
Regarding the spring winders, I made my own and used copper pipe reducers as the tubes to retain the spring. You will need to cut out a section for the end of the spring to protrude but if you watch one of the many videos on this subject that will make sense. You can find a selection of sizes on Ebay for very little cost. I'll attach a pic showing one of mine. Good luck! -
There were things bothering me about this discussion that took me a while to figure out the problem. In the image below it appears to be the spring may be pushing up? Normally when Omega has a spring pushing up the pinion has a pivot with a bridge to hold it in place so in other words the spring can push on something that stationary as opposed to this which appears to be floating? To understand the problem with the above image we need another image of side view which I have below. In my image down below on the left-hand side it agrees with the image up above. But the only problem is the left-hand side is defective and the right-hand side image is the way it's supposed to look. Then Omega if you can access the right documents does explain how and why this problem occurs. With the pinion floating around it might be assumed that you support it when putting on all the hands but you do not because as noted below if you do this small bush on the pinion will relocate out of position exactly what we see in the image up above. Then Omega does not mention this but there is a possibility of also damaging the pinion and causing the bush to move to where it's not supposed to be when removing the hands.
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By LittleWatchShop · Posted
Maybe show us 1) the watch, 2) timegrapher readings in DU, DD, PU, and PD.
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