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Seiko 66-9990 access to movement


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I've got this 1963 Seiko 66. Not worked on one of these before. Can anyone advise how I get the movement out please?

I have removed the bezel and it started to run, probably because the bent second hand was stuck, which is promising.

It doesn't look like the back comes off but I'm not sure?  Does the crown and stem pull out or unscrew?

Any help appreciated.

 

 

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If you haven't work on a 66 previously, remember when disassembling it that there's a tiny washer between the 4th wheel and the center wheel bridge. It can be easily forgotten and get lost in the ultrasonic or in the cleaning process.

 

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Edited by aac58
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