FHF 64, 64-2, 64-2N, 641, 641-2, 641-2N, 642, Winding stem, no: 401
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New original part, not in factory packaging.
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Thread: 90
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Fits cal: 64, 64-2, 64-2N, 641, 641-2, 641-2N, 642 (8.75''').
Technical data: FHF: 64
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17 jewels, manual wind, sweep second. -
Size: 8.75''' 19.4 mm. -
H: = 4.3 mm. -
N: = 18.000 A/h. -
Power reserve: 44 h.