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 you’ll always know what time it is, even in the dark. SPECIFICATIONS ase size (L× W× H) 44.4 × 43.2 × 11 mm Weight 37 g Case and bezel material Resin Band Resin Band Water resistance 50-meter water resistance Power supply and battery life Approx. battery life: 7 years on CR2016 Glass Resin Glass Compatible band size 145 to 215 mm Stopwatch 1/100-second stopwatch Measuring capacity: 59'59.99" Measuring modes: Elapsed time, split time, 1st-2nd place times Alarm/hourly time signal Daily alarm Hourly time signal Light LED backlight Light color LED:Amber Calendar Auto-calendar (set at 28 days for February) Accuracy Accuracy: ±30 seconds per month Other features 12/24-hour format Regular timekeeping: Hour, minute, second, pm, date, day