Pocket Watch Database - Serial Number Lookup
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By ManSkirtBrew · Posted
This is tremendous and will save me a ton of research, thank you! Looks like mine is 90 degrees off from your picture. Might explain why my quickset wasn't working. I noted this during disassembly! And the intermediate wheel right next to it was chamfer down. While I've got you here, do you happen to have a diagram of how the automatic works goes together? Also I just noticed I misread the movement on the automatic weight! I'll see if I can fix the title...I cannot. So if anyone is searching, it's an 11AOACB. -
By ManSkirtBrew · Posted
I finally got around to replacing the clasp on my 1972 Seiko 6139B chronograph. One of the ears on the old one had completely worn away so it would randomly pop off my wrist, which is less than convenient. It did need a little percussive persuasion to get together, but I'm pleased to have it back on my wrist. I really love this watch. -
The 11AN/11AO family is probably my most worked on movement (working on one right now). I've had the auto bridge spring into the ether myself. Bulova tells how to wind down the mainspring in their tech sheet but I've never had success following their instructions. There are definitely some quirks with the movement: oiling the upper sweep second wheel pivot and the dial side pivot of one of the auto works wheels which is inconveniently placed between the spokes of the escape wheel. the Date Corrector Setting Wheel has to be placed in the exactly correct orientation or the quickset date change will not work. the setting wheel that interacts with the sliding clutch goes chamfer up. I've made my own 'tech sheet' for it and shared it in case it's of use to anyone. Bulova 11AOACB.pdf
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