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And that's, of course, exactly what I'm doing, which is why I'm reluctant to even attempt this fix. First, I'm not even sure how much I need to bend it. If I've got the balance shimmed with 5 layers of foil, each roughly 0.016mm thick (standard household aluminum foil), that adds up to maybe 0.08mm that the balance cock needs to be bent. This assumes I haven't decreased the thickness of any of the layers of foil in compression. There's absolutely no way I can eyeball that small a difference, which begs the question: how can I even tell how much I've bent the balance cock? My bet is that I would either not bend it at all, or would bend it too much. All the possible solutions suggested above will be great for future reference, but I think for this movement, a shim is the best approach. My friend will never have it adjusted; she might only wind it up on occasion to hear it ticking away, to get a reminder of her uncle to whom the watch belonged. At this point, after all of my misadventures, I just want it to run both dial up and down. I know that probably sounds like too modest a goal, but I need to move on to my next project(s) (I've already got two in process). š I'm still planning on trying to true the balance wheel (good practice), and I'll run the rotation test suggested by @nevenbekrievĀ and @JohnR725, just to see how it works and what kind of results I get. After that, I'm pretty sure I'll just oil the balance jewels, re-assemble it, and call it a day. One thing I've really learned in this process is the degree to which vintage watch repair is a cost-benefit analysis involving a lot of different factors.
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So being a ladies were you luck with an SR621 or unlucky with an SR5XX?
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By Neverenoughwatches · Posted
I hope it's not alkaline....š¤...mother in-law...š¤.....yes alkaline will be just fine.Ā
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