G-SHOCK GA-2100K-2AER

Inspired by the music-driven nightlife, the GA-2100K-2A brings to life the shadowy thrill of nightclubs and music festivals. A newly developed surface finish gives the dial a clean, modern look that complements the streamlined GA-2100 design. The smooth surface serves as the perfect canvas for a glossy finish and rich color scheme, projecting the depth of piano black. Neon-colored accents evoke laser strobes cutting through the beat, while translucent materials with a matte finish on the bezel and band recall the haze of a fog machine on the dance floor.

Beneath the striking exterior sits the proven GA-2100 platform — a Carbon Core Guard structure that delivers G-SHOCK’s signature shock resistance in a slim 11.8mm profile at just 51g. The octagonal bezel design pays homage to the original DW-5000C, and 200-meter water resistance ensures durability in any environment. Functional features include a 1/100-second chronograph, world time across 48 cities, countdown timer, five daily alarms, and a Double LED Super Illuminator for visibility in low light.

Basic Information

Case Size (L× W× H): 48.5 × 45.4 × 11.8 mm
Weight: 51g
Case and Bezel Material: Carbon / Resin
Band: Resin Band
Construction: Shock Resistant, Carbon Core Guard structure
Water Resistance: 200-meter water resistance
Power Supply: Approx. battery life: 3 years on SR726W × 2

Exterior

Glass: Mineral Glass
Compatible Band Size: 145 to 215 mm
Other: Neobrite

Watch Features

World Time: 31 time zones (48 cities + coordinated universal time), daylight saving on/off
Stopwatch: 1/100-second stopwatch
Timer: Countdown timer (1 second to 24 hours)
Alarm: 5 daily alarms, Hourly time signal
Light: Double LED light (Super Illuminator)
Light Color: LED: White
Calendar: Full auto-calendar (to year 2099)
Accuracy: ±15 seconds per month
Other Features:
12/24-hour format
Hand shift feature
Button operation tone on/off