Immerse yourself in the feel of mysterious, smoky light with the G-SHOCK GA2100K-2A, inspired by the pulse of music-driven nightlife and the shadowy thrill of clubs and festivals. Laser-style neon accents cut through a rich, deep blue dial, while translucent matte finishes on the bezel and band echo the hazy atmosphere of a fog-filled dance floor. Designed with a slim yet tough profile, the carbon and resin case measures 48.5 × 45.4 × 11.8 mm and weighs just 51 g. G-SHOCK’s Carbon Core Guard structure delivers exceptional shock resistance, while 200-metre water resistance, mineral glass, and Neobrite luminous coating ensure durability and visibility in any environment. Functionality is equally impressive, with world time across 31 time zones, a 1/100-second stopwatch, countdown timer, five daily alarms, and a full auto-calendar up to 2099. Double white LED illumination keeps the dial clear, and the hand-shift feature provides an unobstructed digital display. Powered by dual SR726W batteries, the GA2100K-2A offers approximately three years of battery life with an accuracy of ±15 seconds per month. A bold new expression of the iconic GA-2100 — cutting-edge design infused with legendary G-SHOCK toughness. - Case size: 48.5 × 45.4 × 11.8 mm - Weight: 51 g - Carbon/resin case & bezel - Resin band (145–215 mm) - Shock resistant with Carbon Core Guard structure - 200 Meters Water Resistant - Mineral glass - Neobrite luminous coating - Approx. 3-year battery life (SR726W × 2) - World time: 31 time zones(48 cities + UTC), DST on/off - 1/100-sec stopwatch (up to 24 hrs, split & 1st–2nd place timing) - Countdown timer (1 sec increments, up to 24 hrs) - 5 daily alarms + hourly time signal - Double LED light (white, 1.5 or 3 sec, afterglow) - Full auto-calendar (to 2099) - Accuracy: ±15 seconds per month - 12/24-hour format - Button tone on/off - Hand shift feature for clear digital view - Analog: hour, minute, day dial - Digital: hour, minute, second, PM, month, date