Three line display shows lap, split and accumulated running times. 100 dual memory recall of lap and split times. 1/100 second precision to 10 hours. Records fastest, slowest and average lap times. Stroke calculator and electronic pacer for training, fitness and exercise. EL backlight for night time or low light use. Time of day, alarm and calendar. Water resistant to 30 meters. Extra large display. Lithium batter CR-2032. One year factory warranty.