Exterior Glass Mineral Glass Compatible bracelet size 150 to 205 mm Watch features Accuracy Accuracy: ±20 seconds per month Other features Display Analog: 3 hands (Hour, Minute, Second), 3 dials (Date, Day, 24-hour). Basic information Case size (L × W × H) 47 × 43.5 × 11.1 mm Weight 124 g Case and bezel material Ion plated Band Stainless steel band One-touch 3-fold clasp Water resistance Water resistant up to 50 meters Power and battery life Battery life estimate: 3 years on SR920SW