Dive with confidence while wearing the Smart dive watch with its sharp display clarity and ergonomic two buttons for full functionality while you're scuba diving or freediving. Divers can adjust their nitrox settings or view their logbook with ease. Underwater, manage alternate depth information completely independent from the additional information displayed in the bottom row. Divers can also include one or more oxygen enriched gases in addition to their main gas, which gives them shorter decompression times by switching gases during the dive. The slimmer profile and stylish two-toned adjustable strap make this watch perfect for everyday wear.Features:Tempered scratch-resistant glass displayPlan mode optionMax displayed depth: 492ft.Memory capacity: 36hr.Option to exclude audible alarmsProfile sampling rate: 5 sec.Calendar functionDual timeDaily alarmResidual nitrogen resetStopwatch in bottom timer modeOption to exclude audible alarmsAltitude adjustmentAscent rate digital indicatorBattery power indicatorMetrical/U.S. unitsFresh/seawater settingsSoftware upgradeabilityLithium batteriesEAN (NITROX) from 21% to 99%Two year limited warranty