Certina 919-1, Crown wheel & core, no: 420/423

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  NOS Certina original parts in factory sealed packaging.

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  Fits cal: 853-1, 854-1, 919-1, 920-1

Data Certina cal: 919-1

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  25 jewels, automatic wind, quickset date, hack feature.
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  Size: 11.5''' 25.60 mm.
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  H: = 5.25 mm.
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  N: = 28.800 A/h.
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  Power reserve: 45 h.

Versions:

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  853-1: manual wind.
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  854-1: manual wind, date.
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  919-1: base caliber, automatic wind, date.
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  920-1: automatic wind, day, date.