ETA 1070-401, Winding stem

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  New ETA original part.
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  Thread: 90
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  Fits cal: 1070, 1170, 1218

Versions:

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  1070: 7,75''' sub second.
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  1150: 7.75''' sub second.
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  1170: 7.75''' sweep second.
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  1216: 9.25''' automatic wind.
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  1217: 10''' automatic wind.
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  1218: 8.25''' automatic wind.