Casio Black Digital Watch F-91WM-1BDF

CASIO Watches Black Digital Watch F-91WM-1BDF Information:   Case size (L× W× H) 38.2 × 35.2 × 8.5 mm Weight 21 g Case and bezel material Resin Band Resin Band Water resistance Water Resistant Power supply and battery life Approx. battery life: 7 years on CR2016     Exterior Glass Mineral Glass   Watch Features 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 Light Electro-luminescent backlight Afterglow Light color EL:Blue Green 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