CASIO G-SHOCK GBM-2100A-1A3JF Analog-Digital Tough Solar Bluetooth Watch
Product Overview
The GBM-2100A-1A3JF is a modern evolution of the iconic 2100 series, combining a slim, octagonal silhouette with a stylish metal bezel, Bluetooth smartphone connectivity, and eco-friendly Tough Solar power. The watch features a durable Carbon Core Guard structure and a biomass plastic band, making it both tough and environmentally conscious. Perfect for everyday casual wear and business settings alike, it offers smart convenience without compromising G-SHOCK’s legendary ruggedness.
Key Specifications
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Model: GBM-2100A-1A3JF
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Water Resistance: 20 ATM (200 meters)
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Case Size: 49.3 × 44.4 × 11.9 mm
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Weight: 72.0 g
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Warranty: 1-year domestic manufacturer warranty
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Accessories: Original Casio box and instruction manual
Mobile Link & App Functions
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Bluetooth connection to smartphones via “CASIO WATCHES” app
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Automatic time correction
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Easy clock setting
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World time for approx. 300 cities
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Time and place reminders
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Mobile phone finder
Main Features
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World Time: 38 cities (38 time zones) + UTC, daylight saving auto-setting, home city swap
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Stopwatch: 1/100 second (under 1 hour) and 1 second (over 1 hour), 24-hour max, with lap/split
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Timer: Up to 60 minutes, adjustable in 1-second increments
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Alarms: 5 daily alarms + hourly chime
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Light: Dual LED Super Illuminator (dial and LCD) with adjustable afterglow (1.5 or 3 seconds)
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Calendar: Fully automatic calendar, leap year compatible
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Operation Sound: ON/OFF switchable
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Power Saving: Display turns off after inactivity in darkness to save power
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Battery Indicator: Displays current solar charge level
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Battery Life: Approx. 7 months from full charge (solar) / 18 months in power-saving mode
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Accuracy: ±15 seconds/month without smartphone link
Design Notes
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Retains the classic 2100 series octagonal design with added metal bezel for elegance and toughness
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Biomass plastic band supports environmental sustainability without sacrificing comfort or durability