Freestyle Unisex 10025774 Shark Tooth Digital Display Japanese Quartz Black / Gunmetal Watch Japanese quartz digital movement that provides real-time surf forecasting, tide and weather data for thousands of locations worldwide, including music and camera control from your wrist on a standard watch battery without recharging needed, blue tooth enabled, wavetrak surf & weather data (swell height & direction, wind speed & direction, air/water temp, tide data with alerts for high/low, sunrise/sunset times) world time, sport activity display, music control, camera control, chronograph, countdown timer, customizable alarms, standard digital functions and backlight, polycarbonate case with hyrdro-pushers (able to be pushed under-water), comfortable and durable canvas synthetic strap Durable hardened mineral crystal protects watch from scratches, water-resistant to 330 feet (100 m), and all with a limited lifetime warranty Japanese-quartz movement Case diameter: 38mm Water resistant to 330 feet