Mechanical manually wound movement Caliber 215 PS Seconds subdial Hobnail patterned bezel White lacquered dial, black roman numerals Sapphire-crystal case back Water resistant to 30 m Case diameter: 31 mm CALIBER 215 PS Seconds subdial Caliber 215 PS Overall diameter: 21.9 mm Height: 2.55 mm 18 jewels, 5 bridges Balance: Gyromax Vibrations per hour: 28'800 Power reserve: 44 h max. Number of parts: 130