ETA 1301-401, Winding stem

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  New ETA original part, not in factory packaging.
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  Thread: 90
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  Fits cal: 1301, 1302, 1311, 1312, 1318, 2325, 2330, 2335

Technical data ETA cal: 1301

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  17/20 jewels, manual wind, sweep seconds.
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  S: = 8.75''' 19.4 mm.
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  H: = 4.25 mm.
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  N: = 18.000 A/h.
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  Power reserve: 40 h.
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  Mainspring: 1,35 x 7,5 - 0,085 - 240

Versions using this winding stem:

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  1301/1302: 8.75''' manual wind, sweep second.
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  1306/1316: 9.75''' automatic wind, sweep second.
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  1307/1317: 10.5''' automatic wind, sweep second.
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  1308/1318: 8.75''' automatic wind, sweep second.
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  1309/1315: 9.25''' automatic wind, sweep second.
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  1310/1320: 9.25''' automatic wind, sweep second.
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  1322: 8.75''' automatic wind, sweep second.
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  2325/2330: 8.75''' manual wind, sub second.
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  2335: 8.75''' manual wind, sub second, different bridge design.