Case / bezel material: Stainless steel / Aluminum One-touch 3-fold Clasp Stainless Steel Band Mineral Glass Screw Lock Back 50-meter water resistance Regular timekeepingAnalog: 3 hands (hour, minute, second), 3 dials (date, day, 24-hour) Accuracy: ±20 seconds per month Approx. battery life: 3 years on SR916SW