This powerful diving watch suitable for professional divers. Supports diving and freestyle modes, meeting different sports needs. Features: Multifunctional: Scuba Diving, NDL Time, Nitrox, Compass, Altimeter, Barometer, Thermometer, Time, Stopwatch, Count Down, Alarm, Back light, 100M water proof and so on. 2 diving modes, free diving, and scuba diving. Silicone strap,316L stainless steel watchcase and tempered glass dial window. Suitable for daily life and outdoor sports. Casual and military-style dial design, fashionable appearance. Specifications: Color: Silver Material: Tempered glass, stainless steel watch case, Silicone strap Case diameter: 50 mm / 1.97 in Case Thickness: 16mm / 0.63in Battery: CR2450 580mAh Button cell Water resistant: 100m / 328.1feet Weight: 123g / 4.03oz Package Size: 10*10*7cm / 3.9*3.9*2.8in Package Weight: 300g / 10.6oz Package List: 1 * Dive Watches 1 * User Manual