Sinn Spezialuhren SZ01

Sinn's flagship in-house modification of the ETA/Valjoux 7750, developed to replace the discontinued Lemania 5100. The SZ01 features a central chronograph minute hand that sweeps 60 minutes in one revolution, similar to the Lemania 5100, making chronograph timing significantly easier to read. Development began in 2003 and the movement debuted in the EZM 10 in 2011. Features include 24-hour subdial at 3:00, 12-hour chronograph counter at 6:00, small seconds at 9:00, and date at 4:30.