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By nickelsilver · Posted
It's U.S., and an amazing movement, probably the best wristwatch made in the U.S., on par with the best Swiss of the time (mid 50s). No JB Weld on this one please! -
I use the same size tweezers for handling wristwatch and pocket watch parts; 1AM brass. No.2 steel are also good for handling almost anything, as long as you are gentle. No.5 steel for tweaking hairsprings etc. but not for picking things up.
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By Sausagefingers · Posted
Hi, I recently started fiddling with watches after successful resurrection of a few old favourites in my sock drawer. I have since bought some unloved projects. My background is car mechanics and electronics. I have got bored of repairing Sony PSP and Xbox so this is my new thing. I really appreciate the amazing engineering in some of these pieces. Sorry for the rambling.
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Question
Negot8or 1
Valjoux 23/72 ... hadn’t been worked on in a long time. Tore it down, cleaned it, reassembled - everything worked ... until I realized I left out a screw.
Tore it back down, installed everything fully this time. Balance wouldn’t rotate. Gears seemed like they were seized.
Tore it back down, spent a LOT of time on each assembly step, ensuring everything spun freely. Installed the palate fork - flicked back and forth as appropriate. Installed balance as the last step. No rotation. Spins freely when “encouraged”, but it doesn’t continue.
I pulled it out. Confirmed that the hairspring isn’t kinked. Jewels look fine (no cracks or chips). I don’t have the means to check if the balance staff is bent, but the balance seems level and when I encourage some rotation, I don’t see any wobble.
Any thoughts on what to check next?
Thanks!
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