Dubois Dépraz 42078

The 42078 is a chronograph module manufactured by Dubois Dépraz. It measures 30mm in diameter and 7.40mm total thickness, with the module itself adding 3.80mm. The movement combines a flyback chronograph with a 60-minute counter, 24-hour indicator, small seconds, date window, and power reserve display. This module has been fitted to various base movements for brands seeking an integrated chronograph solution.