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AS 1203, Winding stem, no: 401

AS 1203, Winding stem, no: 401

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  • New AS original part, not in factory packaging.

  • Thread: 90

  • Fits cal: 1203, 1204, 1205, 1206, 1634


Technical data: AS 1203


Versions: Differences not known between cal: 1203, 1207, 1263, 1266, 1267, 1311, 1314.


  • 15 jewels, manual wind, sub second.

  • Size: 12''' 26.6 mm.

  • H: = 3.80 mm.

  • N: = 18.000 A/h.

  • Power reserve: 40 h.

  • Mainspring: 1.70 x 10.5 - 0.12 - 330 mm.