Valjoux 7733-8320, Spring for coupling clutch

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  Used Valjoux original part in very good condition.

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  Fits cal: 7733, 7734, 7736, 7737

Versions:

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  7733: 60 s, 30/45 min counter.
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  7734: 60 s, 30/45 min counter, date.
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  7736: 60 s, 30/45 min, 12 h counter.
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  7737: 60 s, 10 min counter. Countdown 10 min for sailing.