Housing Dimensions (L x W x H) 53.2 x 50 x 18.7mm Weight 72 grams Case/Bezel Material: Resin Strap material resin strap Shock proof 200 meters waterproof Battery Life: 3 Years Glass for CR2016 mineral glass Strap adjustment size 145 to 205mm stopwatch 1/100 second stopwatch Measuring ability: 00'00''00~59'59'­9;99 (first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second ( First 60 minutes) 1 second (after 60 minutes) Measuring Modes: Elapsed Time, Split Time, 1st-2nd Place Time timer Countdown Timer Unit of Measure: 1 Second Countdown Range: 24 Hours Countdown Start Time Setting Range: 1 Second to 24 Hours (1 Second Increment, 1 Minute Increment, and 1 Hour Increment) Other: Auto Repeat Alarm clock / Hourly chime Flashing alarm Flashing alarm with buzzer, hourly time signal, countdown timer time out LED backlight (Super Illuminator) afterglow LED: white Fully automatic calendar (to year 2099) Accuracy: ±15 seconds per month 12/24 hour format Conventional timing: hour, minute, second, pm, month, day, date