Hello from Ghent, Belgium.
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By RichardHarris123 · Posted
I would soak in rust remover, then penetrating oil. Source a tube just larger than the gear, and fill with glue from a glue gun. I know the glue hasn't got much shear strength but over the surface area it might work. Worst case scenario, the glue shears, not the gear. -
I have it stripped down to just the case now, those were just photos from the disassembly. I was trying to turn the crown while holding the gear, I think I'll give your suggestion a try and trying turning the gear instead. One thought I had was that if I had enough 3D modelling skill (I don't), I could 3D print a jig that would fit over the gear and allow me to turn it that way without risking damaging the teeth. I'm really hesitant to use too much force on the gear as if it breaks, the watch would just have to go in a drawer or on ebay for parts as I would never be able to find a replacement part.
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I bet the crown is a conventionally screwed on type and you are on the right track. You should remove crystal and lunette to get better access to the gear. So you could block the crown and turn the gear.
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There doesn't appear to be a screw on the inside of the gear. I have tried holding the gear with needle nose pliers and heating the crown with a soldering iron but the crown is inset in the case and it's hard to get a good grip on it when trying to turn it CCW.
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…well done. Looks great. You’ve inspired me to get cracking at mine…
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