Specifications : Case / bezel material: Stainless steel Stainless Steel Band One-touch 3-fold Buckle Solid Band 50-meter water resistance Mineral Glass Screw Lock Back Date display Regular timekeeping Analog: 3 hands (hour, minute, second) Accuracy: ±20 seconds per month Approx. battery life: 2 years on SR616SW Size of case/total weight: 33.9 X 29.3 X 8.7 mm/72 g