Mineral Glass Magnetic Resistant Shock Resistant Screw Lock Crown 200-meter water resistance Case / bezel material: Resin Resin Band 1/20-second stopwatch Measuring capacity: Measuring modes: Elapsed time, split time, 1st-2nd place times Date display Regular timekeeping Analog: 3 hands (hour, minute, stopwatch seconds), 3 dials (time keeping second, stopwatch 1/20 second, stopwatch hours/stopwatch minutes) Accuracy: 20 seconds per month Approx. battery life: 3 years on SR927SW Size of case: 55 x 52,7 x 16,6 mm Total weight: 72.9 g