Case / bezel material: Stainless steel One-touch 3-fold Clasp Stainless Steel Band Mineral Glass Screw Lock Back 100-meter water resistance 1-second stopwatchMeasuring capacity: 29'59Measuring modes: Elapsed time, split time, 1st-2nd place times Date display Regular timekeepingAnalog: 3 hands (hour, minute, second), 3 dials (stopwatch minutes, stopwatch seconds, 24-hour) Accuracy: ±20 seconds per month Approx. battery life: 3 years on SR920SW