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Immerse yourself in the feel of mysterious, smoky light with the G-SHOCK GA2100K-5A, a watch inspired by the rhythm of music-driven nightlife and the shadowy energy of nightclubs and festivals. Warm earth-tone hues are paired with subtle neon accents that shimmer like laser strobes, while translucent matte finishes on the bezel and band recall the hazy atmosphere of a fog-filled dance floor.
The streamlined GA-2100 design features a carbon and resin case measuring 48.5 × 45.4 × 11.8 mm and weighs just 51 g. Built with G-SHOCK’s Carbon Core Guard structure, it delivers outstanding shock resistance alongside 200-metre water resistance, mineral glass, and Neobrite luminous coating for reliable performance day or night.
Packed with functionality, the GA2100K-5A offers 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 ensures clear visibility, while the hand-shift feature keeps the digital display unobstructed. Powered by dual SR726W batteries, it provides approximately three years of battery life with an accuracy of ±15 seconds per month.
A bold new take on the iconic GA-2100 — cutting-edge style 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
$161.88
G-Shock GA2100K-5A—
$161.88
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Immerse yourself in the feel of mysterious, smoky light with the G-SHOCK GA2100K-5A, a watch inspired by the rhythm of music-driven nightlife and the shadowy energy of nightclubs and festivals. Warm earth-tone hues are paired with subtle neon accents that shimmer like laser strobes, while translucent matte finishes on the bezel and band recall the hazy atmosphere of a fog-filled dance floor.
The streamlined GA-2100 design features a carbon and resin case measuring 48.5 × 45.4 × 11.8 mm and weighs just 51 g. Built with G-SHOCK’s Carbon Core Guard structure, it delivers outstanding shock resistance alongside 200-metre water resistance, mineral glass, and Neobrite luminous coating for reliable performance day or night.
Packed with functionality, the GA2100K-5A offers 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 ensures clear visibility, while the hand-shift feature keeps the digital display unobstructed. Powered by dual SR726W batteries, it provides approximately three years of battery life with an accuracy of ±15 seconds per month.
A bold new take on the iconic GA-2100 — cutting-edge style 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




















