Rolex 620, Screw for oscillating weight

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  NOS ROLEX original part in very good condition.

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  Fits cal: 620, 630, 635, 645

Data: Rolex cal: 620

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  17/18 jewels, automatic wind, sub second.
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  Size: 9.75''' 26.4 mm.
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  H: = 7.40 mm.
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  N: = 18.000 A/h.
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  Power reserve: 41 h.

Versions:

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  600: manual wind, sub second, base caliber.
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  620: automatic wind, sub second.
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  630: automatic wind, sweep second.
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  635: automatic wind, sub second, Shock-Resist.
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  645: automatic wind, sweep second, Shock-Resist.