100% ORIGINAL CASIO G- SHOCK 40th Anniversary Adventurer’s Stone Series GM-5640GEM-1DR / GM-5640GEM-1 / GM-5600

Case size (L× W× H)
49.6 × 43.2 × 12.9 mm
Weight
78 g
Case and bezel material
Case / bezel material: Resin / Stainless steel
Band
Resin Band
Construction
Shock Resistant
Water resistance
200-meter water resistance
Power supply and battery life
Approx. battery life: 2 years on CR2016
Glass
Mineral Glass
Surface treatment
Black ion plated bezel
Rainbow ion plated bezel
Compatible band size
145 to 215 mm
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