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The CASIO G-SHOCK GBM-2100A-1A2JF merges the iconic slim octagonal silhouette of the 2100 series with a sophisticated metal bezel, advanced Tough Solar power, and smartphone connectivity via Bluetooth. Featuring an eco-friendly biomass plastic band, this model combines rugged durability, smart functions, and stylish design — perfect for casual or business wear.
Model Number: GBM-2100A-1A2JF
Water Resistance: 20 ATM (200 meters)
Case Size: 49.3 × 44.4 × 11.9 mm
Weight: 72.0 g
Warranty: 1 year domestic manufacturer warranty
Included Accessories: Casio box, instruction manual
Bluetooth connectivity with compatible smartphones
Automatic time correction and easy setting via “CASIO WATCHES” app
World time covering approx. 300 cities and time zones
Time and place reminders
Mobile phone finder
World Time: 38 cities (38 time zones), daylight saving auto setting, UTC display, home city swap
Stopwatch: 1/100 second (under 1 hour) and 1 second (over 1 hour), 24-hour max, lap/split functionality
Timer: Up to 60 minutes, adjustable in 1-second units
Alarms: 5 daily alarms plus hourly chime
Light: Double LED Super Illuminator for dial and LCD, with adjustable afterglow (1.5s or 3s)
Calendar: Fully automatic, no manual adjustment needed
Operation Sound: ON/OFF switchable
Power Saving: Display automatically turns off after inactivity in the dark
Battery: Indicator display included
Battery Life: Approx. 7 months on full charge (solar), 18 months in power-saving mode
Accuracy: ±15 seconds/month without smartphone connection
Slim, durable Carbon Core Guard structure
Metal octagonal bezel adds elegance and toughness
Biomass plastic band for eco-conscious wear
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