Practical functionality and bold display meet in a sporty digital design. The W-218H is equipped with a 7-year battery, have 50-meter water resistance, and the LED light means youƒ?ª?ll always know what time it is, even in the dark. Case / bezel material: Resin Resin Band Resin Glass 50-meter water resistance LED backlight LED:Amber 1/100-second stopwatch Measuring capacity: 59'59.99" Measuring modes: Elapsed time, split time, 1st-2nd place times Daily alarm Hourly time signal Auto-calendar (29 days for February) 12/24-hour format Regular timekeeping: Hour, minute, second, pm, date, day Accuracy: Çï¶Ï30 seconds per month Approx. battery life: 7 years on CR2016 Size of case : 44.4 _ 43.2 _ 10.8 mm Total weight : 37 g