Case size (L W H) 48.9 42.8 13.4 mm Weight 52 g Case and bezel material Resin Band Resin Band Construction Shock Resistant Water resistance 200-meter water resistance Power supply and battery life Approx. battery life: 5 years on CR2016 Glass Mineral Glass Compatible band size 145 to 205 mm Stopwatch 1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsed time, split time, 1st-2nd place times Timer Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) Other: Auto-repeat Alarm/hourly time signal Hourly time signal Multi-function alarm Flash alert feature Flash alert Flashes with buzzer that sounds for alarms, hourly time signals, countdown timer time up alarm Light LED backlight (Super Illuminator) Afterglow Light color LED:White Calendar Full auto-calendar (to year 2099) Accuracy Accuracy: 15 seconds per month Other features 12/24-hour format Regular timekeeping: Hour, minute, second, pm, month, date, day