Triple line display. 16 Lap and split memory with 1/100 sec precision. Fastest and slowest lap calculation. Countdown timer. Pacer with programmable memory. Calendar and Time (12/24 hr format). Daily Alarm. Memory full indicator. Water resistant. Shock resistant. Color: black. Digit height: 0.23 in. Display size: 1.35 x 0.9 in. Unit size: 2.8 x 2.2 x 0.6 in. Power source: 1 CR2016 battery. Includes: Battery.