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cannon pinion
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  1. The Japanese & Asian Watch Forum
    H, I have a Seiko sportsmatic 5 day/date 6619-8050 from mid 60s. The minute and second hand periodically stop for 5-10minutes and then restart while the second hand keeps moving at normal rate. I checked the cannon pinion under the hour wheel and the tube part is tight on the gear. Minute and...
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