Case / bezel material: Stainless steel Genuine Leather Band 100-meter water resistance Mineral glass Screw Lock Back Regular timekeeping: Analog: 3 hands (hour, minute, second), 3 dials (24-hour, stopwatch minutes, stopwatch seconds) 1/10-second stopwatch Measuring capacity: 59'59.9'' Measuring modes: Elapsed time, split time, 1st-2nd place times Date display Accuracy: ±20 seconds per month Approx. battery life: 3 years on SR920SW Size of case : 49 × 43.8 × 11.1 mm Total weight : 75g