Casio G-Shock Classic GA-B2100BEG-1A

Bold, dynamic, electric: harness the energy of G-SHOCK in a striking contrast of black and electric green. Featuring an LCD display with printed green details that stand out against the classic G-SHOCK black bezel, strap, and dial. A fearless visual design, made to impress and electrify. Press the light button to illuminate the digital display, ensuring easy and immediate readability even in the dark. Show off a modern and trendy look thanks to the sharp and stylish contrast between electric green and timeless black.

Case size (H × W × D): 48.5 × 45.4 × 11.9 mm
Weight: 52 g

Case and bezel material: carbon / bio-based resin
Strap: bio-based resin, adjustable from 145 to 215 mm
Structure: shock-resistant with Carbon Core Guard
Water resistance: 20 bar

Time adjustment: Bluetooth with smartphone connection and automatic adjustment

Power supply: Tough Solar (solar energy)

Smartphone connectivity: Mobile Link (Bluetooth®) with CASIO WATCHES app
App functions: automatic watch adjustment, simplified settings, world time for approximately 300 cities, time and location, reminder, phone finder function

Glass: mineral
Other features: Neobrite

World time: 38 time zones (38 cities + UTC), city code and name display, daylight saving time on/off, automatic DST switching, city switching

Stopwatch: 1/100 second with capacity 00'00''00–59'59''99 (first 60 minutes) and 1:00'00–23:59'59 (after 60 minutes), elapsed time mode, split/lap time

Countdown timer: up to 60 minutes, setting from 1 second to 60 minutes

Alarms / hourly time signal: 5 daily alarms and hourly time signal

Lighting: double LED light (Super Illuminator) for dial and digital display, selectable duration (1.5 or 3 seconds) with afterglow
Light color: white

Calendar: full auto calendar up to 2099

Mute function: button operation tone on/off

Power saving: automatic display off in the dark

Battery indicator: yes
Battery life: approx. 7 months (normal use), up to 18 months with power saving active

Accuracy: ±15 seconds per month (without Mobile Link)

Other functions: hand shift feature, date/month display, day of the week in 6 languages

Time display: analog with 2 hands (hour, minute with movement every 20 seconds) and 1 dial (battery level/mode), digital with hour, minute, second, PM, month, date, day