Introducing the Casio W-217H-3AVCF watch, equipped with the latest Casio CA-53W-1CR features. This watch boasts a 10-year battery life, 100-meter water resistance, and a versatile stopwatch function. Stay on track and on time with this reliable and durable timepiece. Specifications Basic Information Case size (L× W× H) 43.1 × 41.2 × 10.5 mm Weight 32 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 Exterior Glass Resin Glass Compatible band size 145 to 215 mm Watch Features 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