Case / bezel material: Stainless steel One-touch 3-fold Clasp Stainless Steel Band Mineral Glass Screw Lock Back Black ion plated bezel 100-meter water resistance 1-second stopwatch Measuring capacity: 9'59 Date display Regular timekeeping Analog: 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 Size of case : 51×47.1×11.3mm Total weight : 145g