Breguet 502 DRP1

The Breguet caliber 502 DRP1 is an automatic movement with a diameter of 27.1 mm and has 38 jewels. It operates at a frequency of 21600 vph and offers a power reserve of 45 hours, featuring a silicon hairspring and small seconds display. This movement includes a perpetual calendar with date, day, month, and moon phase indications, and is used to power the Classique Quantième Perpétuel 5327.