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Old 25 April 2017, 02:04 AM   #1
debner4
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Does anyone know what the large metal "dot" is on the back of a 324 movement?

I've always wondered what the dot is for, is it the backing of a screw that has the screw head on the dial side of the movement? Is it something else?

It can be seen in the photo below at 2:00 on the Patek movement.





https://www.rolexforums.com/attachme...1&d=1491951919
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Old 25 April 2017, 03:04 AM   #2
lapince
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It is part of the crown winding mechanism, if you wind it you will see that it moves
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Old 25 April 2017, 04:04 AM   #3
debner4
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Quote:
Originally Posted by lapince View Post
It is part of the crown winding mechanism, if you wind it you will see that it moves
Interesting.
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