Intense apparatus for serious deep sea exploration...Aqualand Duplex diver's watch in high performance titanium. Underwater depth display performs down to 260 feet. Maximum depth dive time and water temperature indicators. 4 dive memory records important dive data. Auto-start dive and rapid ascent warning signal. Ultra-durable titanium case with titanium push-pins. Unidirectional rotating bezel with raised markers. Black dial with dual digital displays, luminous hands and hour markers. Screw back case and screw down crown for water resistance up to 200 meters (660 ft.). Sturdy rubber strap is incredibly strong. Precise quartz movement. Case is 44mm diameter, 14.5mm thick.