ETA 2390-401, Winding stem

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  New ETA original part.

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  Thread: 90

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  Fits cal: 2390, 2391, 2408, 2409, 2450

Versions: 10,5 - 11,5''' all: 18000 A/h.

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  2390: 10,5''' manual wind, base caliber 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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  2409: 11,5''' manual wind, date.
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  2450: 10,5''' automatic, base caliber automatic.
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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, modified rotor.
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  2454: 11,5''' automatic, date, modified rotor.
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  2456: 10,5''' automatic, date.
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  2460: 11,5''' automatic, date.
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  2471: 11,5''' automatic.
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  2472: 11,5''' automatic, date, new date mechanism.
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  2474: 11,5''' automatic, date.