G-SHOCK GA-2110SU-3AER

The GA-2110SU-3A is the green, “Utility Color” variant of G-SHOCK’s octagonal CasiOak — built on the same thin analog-digital chassis as the GA-2100 but with a redesigned bezel and a colour palette pulled toward streetwear and military-leaning earth tones. The “SU” lineup uses practical, utilitarian colours across the bezel, dial and band rather than the cleaner single-colour treatments of the standard 2100, and the -3A lands on an olive/army green that pairs the green resin band with a darker bezel and dial assembly for a layered, mil-spec look without crossing into full camouflage territory.

What separates the GA-2110SU specifically from the regular GA-2100 is the bezel construction. Casio uses a double-molded bezel cover here — two layers of resin molded together over the octagonal frame — which gives the bezel a multi-tone, slightly sculpted appearance compared to the flat single-colour bezel of the base model. The case underneath is the same one that made the CasiOak a runaway success: a carbon-fibre-reinforced resin shell built around the Carbon Core Guard structure, with an inner carbon case taking on the shock-protection job traditionally handled by a thick bezel. The result is the line’s signature thin profile — 11.8 mm — at the same 45.4 mm wide, 51-gram footprint as every other resin 2100. The dial is the standard 2100 layout: octagonal frame, recessed analog sub-dial, small LCD window, applied indexes with Neobrite lume on the hands.

On the functional side, this is a battery-powered, non-Bluetooth variant of the 2100, so the toolkit stays focused: world time across 31 zones and 48 cities with daylight saving on/off and home/world city swapping, a 1/100-second stopwatch with elapsed, split and 1st–2nd place times, a 24-hour countdown timer, five daily alarms, hourly time signal, full auto-calendar to 2099, 12/24-hour format and a hand-shift feature that moves the analog hands clear of the LCD when needed. The double LED light handles both the analog face and the digital display through a Super Illuminator with selectable 1.5- or 3-second duration and afterglow. Shock resistance and 20 bar (200-metre) water resistance carry over from the rest of the 2100 family, and power comes from a pair of SR726W cells rated for roughly three years.

Basic Information

Case size (L × W × H): 48.5 × 45.4 × 11.8 mm
Weight: 51 g
Case and bezel material: Carbon / Resin
Band: Resin band
Construction: Shock resistant; Carbon Core Guard structure
Water resistance: 20 bar (200-metre water resistance)
Power supply and battery life: Approx. battery life: 3 years on SR726W × 2

Exterior

Glass: Mineral Glass
Other: Neobrite; double-molded bezel cover

Watch Features

World time: 31 time zones (48 cities + coordinated universal time), daylight saving on/off, home city/world time city swapping
Stopwatch: 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; elapsed time, split time, 1st–2nd place times)
Timer: Countdown timer (1-second unit, 24-hour range, start time 1 second to 24 hours in 1-second, 1-minute and 1-hour increments)
Alarm/hourly time signal: 5 daily alarms, hourly time signal
Light: Double LED light — LED for the face and LED backlight for the digital display (Super Illuminator, selectable illumination duration 1.5 or 3 seconds, afterglow)
Light color: LED: white
Calendar: Full auto-calendar (to year 2099)
Mute feature: Button operation tone on/off
Accuracy: ±15 seconds per month
Other features: 12/24-hour format; hand shift feature (hands move out of the way to clear the digital display)
Regular timekeeping: Analog — 2 hands (hour, minute; minute hand moves every 20 seconds), 1 dial (mode). Digital — hour, minute, second, pm, month, date, day