Casio G-Shock DWD-5500BB-1 Digital

Specifications
Shock resistant
Electro-luminescent backlight
Auto light switch, afterglow
Flash alert
Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer progress beeper, and stopwatch auto start
World time
29 time zones (48 cities), daylight saving on/off
1/100-second stopwatch
Measuring capacity: (23:59'59.99'')
Measuring modes: Elapsed time, split time, 1st-2nd place times
Other: 5-second countdown auto start
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
Others: Auto-repeat, progress beeper on/off
3 multi-function alarms (with 1 snooze alarm)
Hourly time signal
Full auto-calendar (to year 2099)
12/24-hour format
Button operation tone on/off
Regular timekeeping: Hour, minute, second, pm, month, date, day
Accuracy: ±15 seconds per month
Approx. battery life: 10 years on CR2025
Size of case/total weight
5.4 X46.2 X13.6 mm