Caliber OP 21/1-15
Mechanical self-winding, Caliber OP 21/1-15 on a VMF 3002 movement, with patented GMT module, 4 Hz (28,800 vibrations/hour), twin barrel, Glucydur balance, flat balance-spring, Incabloc shock absorber, ceramic ball-bearing mechanism, 311 parts, 48 jewels, 37 mm in diameter, 8 mm thick, circular-grained baseplate, bridges adorned with Côtes de Genève, rhodiumed or engraved, beveled finish, circular satin-brushed wheels, 50-hour power reserve.
Patented GMT module, developed by Centagora, 118 parts, 20 jewels, 4.3 mm thick
Hours, minutes, small seconds, dual-time display with day/night indication, GMT zone indicator
Home time between 10 and 11 o’clock dual-time display with day/night indication at 3 o’clock GMT zone indicator between 1 and 2 o’clock small seconds at 6 o’clock