Casio,LA-201W-2A2DF,Electro-luminescent backlight Afterglow, Dual time , 1/100-second Stopwatch,Measuring capacity: 23:59'59.99'', Measuring modes: Elapsed time, split time, 1st-2nd place times,Daily alarm, Hourly time signal, Auto-calendar (to year 2099),12/24-hour format, Regular timekeeping: Hour, minutes, seconds, pm, month, date, day,Accuracy: ±20 seconds per month, Approx. battery life: 3 years on CR1216,Casio,LA-201W-2A2DF,Rectangle,Digital,44 millimeters,18 millimeters,Blue,Water resist,Quartz,Watch,Unisex-adult,4971850438953,Casio,Casio,Seller Warranty