Valjoux 7730

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The Valjoux 7730 chronograph movement is the same as Venus caliber 188, the only difference is the adjustable stud carrier fitted to the Valjoux 7731. The 7730 was later completely redesigned and named 7733, which shares many spareparts with the 7730. Data: Valjoux 7730/Venus 188 17 jewels manual wind chronograph. Size: 14''' 31mm. H: = 6,0 mm. N: = 18.000 A/h. Power reserve: 45 h. Versions: 7730: 60 s, 30/45 min. counter. Same as Venus cal: 188. 7731: 60 s, 30/45 min. counter, new balance cock w. movable stud carrier. Versions, redesigned: 7733: 60 s, 30/45 min. counter. 7734: 60 s, 30/45 min. counter, date. 7736: 60 s, 30/45 min. counter, hour counter. 7737: regatta countdown timer, 10 min. Show more