Casio G-shock GM-S5640GEM-7DR Digital Rubber Strap Watch

Case size (L× W× H): 43.8 × 38.4 × 10.9 mm
Weight: 50 g
Case / bezel material: Resin / Stainless steel
Resin Band
Shock Resistant
Water resistance
200-meter water resistance
Battery: CR1616
Mineral Glass
Surface treatment
Rainbow ion plated bezel
Compatible band size: 145 to 200 mm
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: ±15 seconds per month
Other features
12/24-hour format
Regular timekeeping:
Hour, minute, second, pm, month, date, day