Mineral Glass Screw Lock Back Water Resistant Case / bezel material: Stainless steel Stainless Steel Band One-touch 3-fold Clasp Regular timekeeping Analog: 3 hands (hour, minute, second) Accuracy: ±20 seconds per month Approx. battery life: 3 years on SR626SW Size of case: 49.8 × 40 × 8.5 mm Total weight: 101 g