Garmin Descent Mk1 GPS Dive Watch Silver Sapphire with Black Band

Garmin Descent Mk1 GPS Dive Watch - Silver Sapphire with Black Band. Garmin Descent Mk1 GPS Dive Watch - Silver Sapphire with Black Band Whether you dive with or without tanks, in saltwater or fresh water, breathing nitrox, trimix or holding your breath ó Descent Mk1 is the intuitive, do-it-all dive computer youíve been waiting for. Itís the first watch-sized dive computer to offer surface GPS navigation with full-color onscreen mapping and location reference- Garmin Descent Mk1 GPS Dive Watch - Silver Sapphire with Black Band.