Omega 502-2722, Screw for casing clamp, Thread: 0.80

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  New original part, not in factory packaging.

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  1 pcs.

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  Thread: 0.80 mm.

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  Fits cal: 502, 503, 504 with serial numbers higher then: 15 775.001

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  470: 17 jewels (1955).
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  471: 19/20 jewels (1955).

Versions: 28.00 mm.

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  490: 17 jewels, sub second (1956).
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  491: 19 jewels, sub second (1956).
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  500: 17 jewels, center second (1956).
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  501: 20 jewels, center second (1956).
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  502: 17 jewels, center second, date (1956).
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  503: 19/20 jewels, center second, date (1956).
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  504: 24 jewels, center second, date, chronometer (1957).
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  505: 24 jewels, center second, chronometer (1957).