Casio Men's G-Shock Classic Digital Watch

Shock resistant (G-SHOCK)
Electro-luminescent backlight
Afterglow
1/100-second stopwatch
Measuring capacity: 23:59'59.99''
Measuring modes: Elapsed time, split time, 1st-2nd place time
Countdown timer
Input range: 1 minute to 24 hours
Unit: 1 second
Other: Auto-repeat
Multi-function alarm
Hourly time signal
Auto-calendar (to year 2039)
12/24-hour formats
Regular timekeeping: Hour, minutes, seconds, pm, month, date, day
Accuracy: ±15 seconds per month
Approx. battery life: 2 years on CR2016
Size of case/total weight
48.5 X 43.0 X 14.7 mm / 59 g