商品名称：Casio G-Shock GA-2100-4A CasiOak Scarlet GA2100
Battery Life / Accuracy
Approximately 3 years (+/-15 seconds per month)
Crystal
Mineral crystal
Light
Double LED light (super illuminator, afterglow)
Case & Band Material
Resin / carbon case with resin band
Water Resistance
200m
Case Size
Thickness: 11.8 mm
Diameter: 45.4 mm
Length: 48.5 mm
Other Specifications
Shock resistant
Carbon core guard structure
World time (31 time zones)
1/100-second stopwatch
Countdown timer
5 daily alarms
Hourly time signal
Hand shift feature
Full auto-calendar (to year 2099)
12/24-hour format
Button operation tone on/off
Regular timekeeping (analog-digital display)
