The G-Shock GA-2100 Neon Accent Series is basically the result of adding fluorescent accents to the stealth black GA-2100-1A1. These watches retain the unpainted bezel lettering and black dial of the GA-2100-1A1 and add blue, green, or orange neon color accents to the hands, hour marker tips, day indicator, and dial labels. The digits on the inverted LCD are also tinted in a matching color. The colors provide enhanced visibility with better contrast and offer the possibility of matching with other clothing items and accessories.
The lightweight GA-2100 is the slimmest G-Shock men’s model, measuring 48.5 x 45.4 x 11.8 and weighing 51 grams. The GA-2100 features a a Carbon Core Guard structure with an interior case made of carbon fiber-reinforced resin. Other features include world time, 1/100-second stopwatch, countdown timer (up to 24 hours), 5 daily alarms, and double LED light with LCD backlight.
The GA-2100-1A2JF, GA-2100-1A3JF, and GA-2100-1A4JF are planned for a February 2022 release in Japan with a price of 14,850 yen each. The series is also expected to be released worldwide.
Update: G-Shock U.S. released the GA2100-1A2, GA2100-1A3, and GA2100-1A4 for $99 each.
Size: 48.5 × 45.4 × 11.8 mm Weight: 51 grams
Structure: Carbon Core Guard, resin case, bezel, and band, mineral glass
Protection: Shock Resistance, 200-meter Water Resistance Power: Battery (SR726W x 2, approx. 3-year life)
Features: World time (31 time zones, 48 cities + UTC, DST on/off), stopwatch (23:59’59 max, 1/100-second first 60 minutes, 1-second after 60 minutes, elapsed time, split time, 1st-2nd place times), countdown timer (24 hours, settable in seconds, minutes, and hours), 5 daily alarms, hourly time signal, dual LED light with 1.5 or 3-second afterglow, full auto-calendar, button tone on/off, 12/24-hour format, hand shift
The GA-2100 Neon Accent Series offers the popular blackout style with high-contrast neon hands for better visibility.
G-Shock GA-2100-1A2: Black with neon blue accents.
G-Shock GA-2100-1A3: Black with neon green accents.
G-Shock GA-2100-1A4: Black with neon orange accents.





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Looking good. I hope there is some lume at least on the hands..
C’m’on Casio, just give me a solar GA2100…