2100 Series Carbon and resin composition Analog-digital dial Adjustable resin band with belt loop Mineral glass Shock resistant 200-meter water resistance Carbon core guard structure Approx battery life: 3 years on SR726W X 2 World time zones Stopwatch, timer, alarm, and hourly time signal Calendar Button operation tone on/off Size: H 11.8 x W 45.4 x L 48.5 mm Weight: 51 grams   Style: ga2100-7a Color: Metallic Silver / Black Material: Carbon / Resin