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  1. Seiko casebacks diameter

    WATCHMAKING & TINKERING
    Does anybody know the diameter for the following Seiko display casebacks(the diameter of the entire case back and the outside thread diameter)? 7S2602J0 7S3604N0 7S3603C0 4R3600C0 I'm looking for a display caseback with a diameter of 33 mm for the entire case back, an outside thread...
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