Manually wound monopusher chronograph with a blanace wheel for the time indication and a balance wheel for the chronograph. Central 1/100 seconds counter; 1/1000 seconds dashboard indicator at 12 o'clock; 45-minute chronograph power reserve indicator at 3 o'clock.
Frequency for chronograph balance 360.000 bph.
Power reserve for the chronograph approx. 45 minutes.