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Product OverviewThe Casio G-Shock GM-B2100AD-5AJF is a full-metal digital-analog watch designed with durability, precision, and advanced technology. Its robust build is complemented by Bluetooth time sync, solar charging, and a bold copper-tone finish. Ideal for those who seek both functionality and distinctive design.
Key Features
Solar-Powered MovementTough Solar system offers reliable performance with up to 7 months of operation on full charge, or 18 months in power-saving mode.
Bluetooth Time SynchronizationAutomatically syncs time with your smartphone for accurate world time adjustments.
World Time DisplaySupports 38 time zones + UTC, with daylight saving time auto-adjustment and home city swapping.
Stopwatch & Timer
Stopwatch: 1/100 second for up to 1 hour, 1-second resolution for up to 24 hours (with lap/split)
Timer: 1-second increments, up to 60 minutes
5 Daily Alarms & Hourly Time SignalSet multiple alarms and activate hourly chime when needed.
Dual LED Light
Dial light and LCD backlight both equipped with Super Illuminator
Adjustable afterglow duration (1.5 / 3 seconds)
Power Saving & Smart Display
Power-saving mode disables display in darkness
Battery level indicator
Fully automatic calendar
Hand retraction function improves LCD visibility
Switchable 12/24-hour format
Date format switching (MM/DD or DD/MM)
Day of the week display available in 6 languages
AccuracyOperates with ±15 seconds/month when not connected via Bluetooth
Specifications
Model: GM-B2100AD-5AJF
Case Size: 49.8 × 44.4 × 12.8 mm
Weight: 165g
Case Material: Stainless steel
Band: Stainless steel with fold-over clasp
Water Resistance: 20 ATM (200 meters)
Movement: Solar-powered quartz with Bluetooth
Light: White dual LED (dial + LCD)
Package Includes
Casio G-Shock GM-B2100AD-5AJF Watch
Casio branded watch box
Instruction manual
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