These watches retain the simplified bezel lettering and dial of the original, and the GA has details on the hands, hour marker tips, day indicator, and dial labels.

The lightweight GA-2100 is still the slimmest G-SHOCK men’s model, and features a a Carbon Core Guard structure with an interior case made of carbon fiber-reinforced resin.

Other features include world time, stopwatch, countdown timer, 5 alarms, and double LED light with LCD backlight.

WATER RESISTANT 200 Metres Water Resistant
ACCURACY +/- 15 seconds per month
ALARM FUNCTION 5 Daily Alarms: Each will sound every day at the time you set
AUTO CALENDAR Once set, the automatic calendar always displays the correct date
BAND MATERIAL Resin
BATTERY LIFE Approximately 3 years
CORE GUARD STRUCTURE New Carbon Core Guard Structure
COUNTDOWN TIMER FUNCTION Countdown Range: 24 hours, Measuring Unit: 1 second
DATE AND WEEKDAY DISPLAY The current date and week day are displayed on the watch face
DATE DISPLAY The current date is displayed on the watch face
DIMENSIONS 48.5 x 45.4 x 11.8 mm
HAND SHIFT FUNCTION With a push of a button, hands move away from the LCD to permit free visibility.
DISPLAY ILLUMINATION Double LED light, LED light for the face and LED backlight for the digital display
MINERAL GLASS Hard glass resists scratching
SHOCK RESISTANT Patented Hollow Core Guard Structure protects against impact and vibration
STOPWATCH FUNCTION Measuring Modes: Elapsed time, split time, 1st-2nd place times, Measuring Unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes)
WEIGHT (GRAM) 51
WORLD TIME Displays the current time in major cities and specific areas around the world