Rip Curl Men's Quartz Plastic and Polyurethane Sport Watch, Color:Black (Model: A1048-BLW) Preprogrammed tide function: electronically stored tide charts for 200 preset locations world wide Automatic Tide System (ATS): Rip Curl's patented averaging tide system. Easily set to thousands of beaches worldwide Lightweight ABS construction for ultimate performance and comfort in and out of the water Other features include: dual time, light, countdown timer, stop watch, alarm and date and time functions Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving