BGD-565 Series Resin translucent composition Digital dial Adjustable resin translucent band with loops Mineral glass Shock resistant 100-meter water resistance Approx battery life: 3 years on CR1616 World time zones Stopwatch, timer, alarm, and hourly time signal Calendar LED Illuminator backlight Size: H 0.44" x W 1.49" x L 1.65" Weight: 30 grams