Omega 1020, 1021, 1022, Click spring, no: 1105

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  New OMEGA original part, not in factory packaging.

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  Fits cal: 1010, 1011, 1012, 1020, 1021, 1022, 1030

Versions:

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  1010: automatic, 17 jewels, date.
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  1011: automatic, 23 jewels, chronometer, date.
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  1012: automatic, 23 jewels, date.
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  1020: automatic, 17 jewels, day, date.
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  1021: automatic, 23 jewels, chronometer, day, date.
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  1022: automatic, 23 jewels, day, date.
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  1030: manual, 17 jewels, date.
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  1035: manual, 17 jewels.