Caliber: 6654.P (Calendar), 1315 (Automatic), F385 (Chronograph)Functions: Hours, minutes, center seconds, day, month, date, moonphase (Calendar); hours, minutes, center-seconds, 4:30 date (Automatic); hours, minutes, seconds, flyback chronograph, 4:30 date (Chronograph)Diameter: 32mm (Calendar), 30.6mm (Automatic), 31.8mm (Chronograph)Thickness: 5.48mm (Calendar), 5.65mm (Automatic), 6.65mm (Chronograph)Power Reserve: 72 hours (Calendar), 120 hours (Automatic), 50 hours (Chronograph)Winding: AutomaticJewels: 28 (Calendar), 35 (Automatic), 37 (Chronograph)Additional Details: Sapphire caseback, ceramic bezel insert, and 23mm lug width on all