Case Size (L × W × H): 48.9 × 42.8 × 13.4 mm Weight: 52 g Case and Bezel Material: Resin / Bio-based resin Band: Bio-based resin 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 Stopwatch Measuring Capacity: 00'00''0059'59''99 (first 60 minutes) Stopwatch (after 60 minutes): 1:00'0023'59'59 (after 60 minutes) Stopwatch Measuring Unit: 1/100 second (first 60 minutes), 1 second (after 60 minutes) Stopwatch Measuring Modes: Elapsed time, split time, 1st-2nd place times Timer: Countdown timer Timer Measuring Unit: 1 second Timer Countdown Range: 24 hours Timer Start Time Setting: 1 second to 24 hours (1-second, 1-minute, and 1-hour increments) Other Timer Feature: Auto-repeat Hourly Time Signal: Yes Multi-function Alarm: Yes Flash Alert Feature: Flashes with buzzer for alarms, hourly signals, countdown timer time up LED Backlight: Super Illuminator Afterglow: Yes Light Color: White Calendar: Full auto-calendar (to year 2099) Accuracy: ±15 seconds per month Other Features: 12/24-hour format, Regular timekeeping (Hour, minute, second, PM, month, date, day)