Tissot 20

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  Manufactured from 1932 - 1938, constructed by Henri Gerber.
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  Serial no: 648 447 (aprox: 1935).

Data: Tissot cal: 20

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  15 jewels, manual winding.
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  Size: 20 x 26 mm.
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  H: = 4,20 mm.
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  N: = 18000 A/h.
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  Power reserve: