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omega 1120 mainspring

  1. FSOT: Omega SMP 2254.50 (1120 mvmt) for 36mm Omega Railmaster Co-ax

    Watches - Private Sellers and Sponsors
    FSOT Omega Seamaster Professional Diver Model #2254.50 automatic with 1120 movement FOR 36mm/39mm Omega Railmaster co-ax in similar condition. The SMP is in excellent condition and has been worn a few times. Watch has a few swirlies on clasp. Watch has been sized for ~6.5" wrist and would...
  2. Is is possible my Omega c.1120 is overwinding?

    Watchmaking
    Can the tension release mechanism for the autowind mainspring become resistant and cause a mainspring to be overwound? I find that if I wear my c.1120 Seamaster for more than a few days 24/7, the watch appears to get very fully wound to the point that it is running c. -12 to -16 sec/day when...
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