Zenith 40T
Data: Zenith cal: 40.T
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17 jewels, manual wind, sub second.
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Size: 12''' 26.75 mm.
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H: = 3.80 mm.
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N: = 18000.
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Power reserve: 45 h.
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Mainspring: 1.55 X 10.5 - 0.105 - 380
Versions:
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40: 1955 - 1960
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40T: 1958 - 1963
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