Ripcurl Rincon Oceansearch PU Watch, 316L Stainless Steel, Automatic Tide System (ATS), Pre-Programed Moon Phase, Preprogrammed Tide Function, Dual Time, Light, Countdown Timer, Stop Watch, Alarm, Date & time display, Depth Tested to 200m, A quality watch for those that like being in the water! It is constructed with the highest grade of stainless steel for water resistance, strength & non-corrosion in a marine environment. The ATS is Rip Curl's patented averaging tide system & can easily be set to thousands of beaches worlwide. The preprogrammed tide function has stored tide charts for 200 preset locations world wide.