Venus 150

The Venus Cal. 150 is a legendary 13 ligne column wheel chronograph introduced in 1938. Originally a monopusher design with 5-column wheel, it was updated to a 7-column wheel with two pushers. Features a 3-9 subdial arrangement with small seconds at 9:00 and 30-minute counter at 3:00. Used by Breitling, Gallet, Wittnauer, Fortis, and Juvenia. The tooling was sold to First Moscow Watch Factory in the late 1950s, becoming the Strela Cal. 3017.