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seiko 6138-8020

  1. 6138 movement experts?

    WATCHMAKING & TINKERING
    Hello, I have a seiko 6138 which 12 register moves without the chrono being engaged: When I reset the chrono everything goes back to zero but when I look at it a few hours after the 12 register hand is pointing at 3 or 4 or whatever. It moves, I understand it should not moves. Where might the...
  2. Seiko 6138B vs 6101

    THE JAPANESE WATCH DISCUSSION FORUM
    Hello, I ma new to this forum and the reason I am here is that am looking for parts to complete my seiko panda movement (6138B). I am specifically looking for all the parts that compose the automatic module, so I discovered that the 6138 is based on the 6101 and from what I saw on some videos...
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