Specifications One-touch 3-fold Clasp Stainless Steel Band Mineral Glass Screw Lock Back Blue 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 / Total weight Size of case: 50.5 × 46.7 × 10.6mm Total weight: 137g