Dubois Dépraz 42056

The 42056 is an automatic chronograph caliber manufactured by Dubois Dépraz. Measuring 30 mm in diameter and 7.4 mm in height, it integrates a full chronograph complication with central 60-second and 60-minute counters, a 12-hour counter, small seconds, a date window, and a 24-hour indicator. Its flyback function allows the chronograph to be reset and restarted without stopping the mechanism first. The movement is used as a module fitted to base calibers to add chronograph functionality.