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missing crown tube

  1. Seiko 6309 - 7040 Case Restoration (missing stem/crown tube)

    Mod & Restoration Reviews (Mod/Restored Watches)
    I recently completed a case restoration on 6309 - 7040 that had a missing stem/crown tube. I have posted an article on my website describing the process. It can be found at It was a fun project and I am happy with the results.