Need help to identify an automatic pocket watch movement.
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The format of the numbers on the case back are similar to Longines I have - a two digit and a four digit number. The lack of "Longines" on the dial suggests this might be the case. But then you would expect the jeweller to put their name on. We await the response from Longines. -
By coreymsnow · Posted
I was sort of expecting to find that parts would be difficult to source- my research bears out the lack of complete interchangeability. I'm less concerned about the stop works because the watch could run without it, but it would be nice to have it. I have a gorgeous dial that would be perfect for this watch and the movement is just gorgeous to my eyes. I hate to see it not working. I'm not sure where to start to find similar parts, but I expect learning to fabricate a cannon pinion and center wheel would be even harder. But who knows, it's not like it's going anywhere. Thank you again! -
Oh, I see ... I'll just have to wait for the answer from Longines, and I will tell you. When disassembling the watch, I noticed some figures on the back of the dial. I don't know whether they mean anything. Thanks to all of you! -
I will definitely look for interference when I open it back up. You make good points. The part that makes me wonder is the fact that it snaps around well if I do it during the day whilst I'm wear it and assume it has more 'wind' than at midnight. -
I doubt it is due to lack of amplitude. My 7750 - which I haven't serviced yet because the numbers were OK (and I am still scared of chronographs!)- has no problem flipping the date with an amplitude closer to 250º On other movements I have had issues where the plate(s) that go over the calendar wheel interfere. I did an FHF ST 96-4 last week where there are 2 tiny plates plus a larger plate that hold the calendar wheel in place and I had real problems getting the calendar wheel to snap around nicely. Lubrication on the points of the teeth of the calendar wheel and making sure the small plates were aligned properly was the solution there.
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