The Champion Sports Sport and Referee Watch does more than just keep track of time. It?s also a stopwatch packed with features that are useful for any referee or athlete. With the Referee and Sport Watch you can recall up to 10 cumulative and split times to 1/100th of a second precision, and every workout is stored as a separate recallable run. A split release feature unlocks after 5 seconds to display current running lap time. Useful features include a 12 or 24-hour format with alarm, programmable countdown/count up time, and a bright night light display. The Referee and Sport Watch is also shock resistant and water resistant to depths of 300ft so you can take it anywhere!