Zenith 135-724, Chronometre, Balance staff
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NOS Zenith original part, not in factory packaging.
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Fits cal: 135 Chronometre with incabloc shock protection.
Data: Zenith cal: 135
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19 jewels, manual wind, sub second. -
Size: 13''' 30.00 mm. -
H: = 5.00 mm. -
N: = 18000. -
Power reserve: -
Mainspring: 2.00 X 12 - 0.12 - 470