Simplicity defined — a streamlined digital watch with large display to clearly show the time at a glance. Comes equipped with 100-meter water resistance, a 10-year battery, LED backlight, and other handy functions. FEATURES Case size (L× W× H): 44.2 × 36.8 × 13.4 mm Weight: 37 g Case and bezel material: Resin Band: Resin Band Water resistance:m100-meter water resistance Power supply and battery life, Approx. battery life: 10 years on CR2025 Glass: Resin Glass Compatible band size: 145 to 215 mm World time: Dual time Stopwatch: 1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring mode: split time Alarm/hourly time signal: Hourly time signal, Multi-function alarm (with 1 snooze alarm) Light: LED backlight Afterglow Light color: LED:Green Calendar: Full auto-calendar (to year 2099) Accuracy: Accuracy: ±30 seconds per month Other features: 12/24-hour format, Regular timekeeping: Hour, minute, second, pm, year, month, date, day