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seiko 7548 repair

  1. Seiko 7548-700F Repair Issue - Stops after 5Min

    Hi, Need some help here before I tear down this watch. I am fixing a friends Seiko 7548-700F Qtz (1981 Model) and, after putting in a new battery, it stops after running exactly 5 minutes. If I advance the minute hand a bit, it starts running again. When it stops, the second hand seems to...