Casio G-Shock DW-5610SU-3DR

Electro-luminescent backlight
Afterglow Flash alert
Flashes with buzzer that sounds for alarms, hourly time signals 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 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 Multi-function alarm Hourly time signal Full auto-calendar (to year 2099) 12/24-hour format Regular timekeeping: Hour, minute, second, pm, month, date, day Accuracy: ±15 seconds per month Approx. battery life: 2 years on CR2016 Size of case : 48.9×43.8×13.5mm Total weight : 52g