American PW Disassembly How Open Waltham Mainspring Barrel?

Lee02

NAWCC Member
Feb 9, 2012
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My 645 movement has the barrel type that does not seem to have a removable arbor. Is there a way to remove the arbor so the mainspring can be serviced?
 

Dave Coatsworth

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This jeweled barrel screws together. Put the ratchet wheel back on the arbor with the screw. Then grasp the barrel with one hand and unscrew the arbor by grasping and turning the ratchet wheel.
 

Lee02

NAWCC Member
Feb 9, 2012
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Thanks Dave and Jerry! Your help is greatly appreciated.
 

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