Certina 25-45-401, Winding stem

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  Certina original part. Not in factory packaging.

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  Thread 0,90

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  Fits cal: 25-45, 25-451, 28-45, 28-451

Versions:

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  25-45: 11,5''' automatic, H=6,00 mm.
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  25-451: 11,5''' automatic, date.
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  28-45: 12,5''' automatic. H:6,00 mm.
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  28-451: 12,5''' automatic, date.