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ZENITH 30.5-401, Winding stem
ZENITH 30.5-401, Winding stem

ZENITH 30.5-401, Winding stem

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  • ZENITH original stem, not in factory packaging.
  • Thread: 0.90 mm.
  • Fits: 30.5


Manufactured from 1973 - 1979


Data ZENITH cal: 30.5  (OMEGA 625)

  • 17 jewels, manual wind.
  • Size: 17.5 mm.
  • H: = 2.5 mm.
  • N: = 21.600 A/h.
  • Power reserve: 42 h.
  • Mainspring: 1.00 x 6.5 - 0.075


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