OVERVIEW  
The new classic GA2100 model incorporates the octagonal form of the original G-SHOCK DW5000C. The case is made of fine resin embedded with carbon fibers, making the thin, lightweight, and simple design configuration of this model possible. The new white band and bezel GA2100-7A is combined with a black face for a cool, refreshing look.
 
FEATURES
LED:White
Size of case: 48.5×45.4×11.8mm
Total weight: 51g
Mineral Glass
Shock Resistant
200-meter water resistance
Case / bezel material: Carbon / Resin　
Resin Band
Double LED light
Mineral Glass
Shock Resistant
200-meter water resistance
Case / bezel material: Carbon / Resin　
Resin Band
Mineral Glass
Shock Resistant
200-meter water resistance
Case / bezel material: Carbon / Resin　
Resin Band
Double LED light
LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
World time
31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping
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)
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: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)
Digital: Hour, minute, second, pm, month, date
Accuracy: ±15 seconds per month
Approx. battery life: 3 years on SR726W × 2
LED:White
Size of case: 48.5×45.4×11.8mm
Total weight: 51g