Omega 620-1159, Winding stem, inner

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  OMEGA original inner winding stem. Not in factory packaging.

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  Total length: 6.43 mm.

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  Fits cal: 620, 630, 670, 671, 680, 681, 682, 683, 684, 685

Data Omega cal: 620

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  17 jewels, manual wind.
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  Size: 17,5 mm.
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  H: = 2,5 mm.
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  N: = 19800.
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  Power reserve: 42 h.

Versions:

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  620: N: 19800.
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  630: N: 19800, center second.