Specifications Case / bezel material: Stainless steel One-touch 3-fold Clasp Stainless Steel Band Mineral Glass Screw Lock Back Gray ion plated bezel 100-meter water resistance 1 / 10-second stopwatch Measuring capacity: 59'59.9 '' Measuring modes: Elapsed time, split time, 1st-2nd place times Date display Regular timekeeping Analog: 3 hands (hour, minute, second), 3 dials (stopwatch 1/10 seconds, stopwatch minutes, stopwatch seconds) Accuracy: ± 20 seconds per month Approx. Battery life: 2 years on SR920SW Size of case / Total weight Size of case: 54.1 × 49.5 × 11.7mm Total weight: 185g