ETA 2451-401, Winding stem

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  New ETA original part.

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  Thread: 90

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  Fits cal: 2451, 2452, 2453, 2454, 2460, 2472, 2474

Versions:

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  2390: 10.5''' manual wind.
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  2391: 11.5''' manual wind.
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  2406: 11.5''' manual wind, date.
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  2408: 11.5''' manual wind, new date mechanism.
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  2450: 10.5''' automatic. Base caliber.
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  2451: 11.5''' automatic.
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  2452: 11.5''' automatic, date.
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  2453: 11.5''' automatic, new oscillating weight*
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  2454: 11.5''' automatic, date, new oscillating weight*
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  2456: 10.5''' automatic, date.
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  2471: 11.5''' automatic, date, modified for new date mechanism.
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  2472: 11.5''' automatic, new date mechanism.
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  2474: 11.5''' automatic, date.
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  2475: 11.5''' automatic, date.

*single metal rotor.