Timex Ironman Sleek 5045;Lap Watch Triathlon sport watch with diamond-shape face and cutout resin band with buckle closure 34 mm resin case with acrylic dial window Quartz movement with digital display Features: Indiglo night light, 100-Hour Chronograph with Lap and Split Times, 99-Lap Counter, 100-Hour Countdown Timer with Stop and Repeat, Dated Training Log with Best Lap, Average Lap and Total Time, and On-the-Fly Lap or Split Water resistant to 330 feet (100 M): In general, suitable for snorkeling, as well as swimming, but not diving