Designed and developed specifically for saltwater sports enthusiasts, the Tidewater performs in numerous aquatic environments. The press of a button serves up the tide cycles of over 200 locations throughout the world. It also gives you expected sunrise/sunset information, as well as the moon phase, for your location. From tidal flats to open ocean, this is a wrist instrument designed to deliver everything you need for coastal adventures. Features 200+ tide locations Sunrise/sunset information Moon phases Future tide/tidal graphs 4 Alarms Water-resistant to 10 ATM; one atmosphere (ATM)=32 feet of water