ETA 1080-721N, Balance, complete

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  New ETA original part.

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  Fits cal: 1080, 1081, 1093, 1152, 1153

Data:

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  15/17/19/21 jewels, manual wind, sweep second.
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  Size: 10,5''' 23,3 mm.
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  H: = 4,15
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  N: = 18.000 A/h.
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  Power reserve: 42 h.

Versions:

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  1080: 10.5'''
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  1081: 11.5'''
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  1093: 11.5''' date.
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  1152: 10.5'''
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  1153: 11.5'''
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  1256: 11.5''' automatic wind.
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  1257: 11.5''' automatic wind, minor modifications.
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  1258: 11.5''' automatic wind, date.
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  1259: 11.5''' automatic wind, date, minor modifications.