Patek Philippe 23-300, Winding stem, no: 401
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New Patek Philippe genuine part, not in original packaging.
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Thread: 90
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Fits cal: 23-300, 23-300PM
Data Patek Philippe cal: 23-300, 23-300PM (adjustable stud carrier).
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18 jewels, manual wind, hour and minute (seconds) display. -
S: = 22.70 mm. -
H: = 3.00 mm. -
N: = 19.800 A/h. -
Power reserve: -
Mainspring: Height: 0.97 mm, Length: 300 mm, Thickness: 0.108 mm.