Mineral Glass Cut Glass Water Resistance Case / bezel: Ion plated Stainless Steel Band One-touch 3-fold Buckle Regular timekeeping Analog: 3 hands (hour, minute, second) Accuracy: ?20 seconds per month Approx. battery life: 3 years on SR626SWSize of case: 30 X 23.5 X 8.3 mm total weight: 55 g