These watches retain the simplified bezel lettering and black dial of the original, and the GA-2100-1A3ER has neon green 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.