Casio G-SHOCK 2100 Series Dual Display Bluetooth Solar Watch (GA-B2100-1A1ER)

Overview

Upgrade the retro look of the octagonal GA-2100 line with Smartphone Link and Tough Solar power. The GA-B2100-1A1ER maintains the iconic octagonal form while adding Bluetooth connectivity for automatic time adjustment and app-based settings. A Carbon Core Guard structure helps keep the case strong and lightweight, and the double LED Super Illuminator improves visibility in the dark.

Key Features

• Carbon Core Guard structure with shock-resistant construction
• Tough Solar (solar powered)
• Smartphone Link via Bluetooth® (Mobile Link)
• Auto time adjustment and easy watch setting via CASIO WATCHES app
• World time: 38 time zones (38 cities + UTC) with city code/name display, DST and home/world swap
• Double LED light (Super Illuminator) for dial and digital display with afterglow
• 1/100-second stopwatch with lap/split timing
• Countdown timer up to 60 minutes
• 5 daily alarms and hourly time signal
• Power saving mode and battery level indicator
• Hand shift feature for unobstructed digital viewing
• Date/month swap and day display in six selectable languages

Specifications

• Case size (L×W×H): 48.5 × 45.4 × 11.9 mm
• Weight: 52 g
• Colour: Black strap and Black dial
• Casio Part Number: GA-B2100-1A1ER
• Case and bezel material: Carbon / resin
• Band: Resin band
• Construction: Shock resistant; Carbon Core Guard structure
• Water resistance: 200-metre water resistance
• Time adjustment: Bluetooth – connects to a smartphone and automatically adjusts the time
• Power supply: Tough Solar (solar powered)
• Glass: Mineral glass
• Other: Neobrite

Smartphone Link & App Functions

• Mobile Link: Wireless linking using Bluetooth®
• App: CASIO WATCHES
• App features: Auto time adjustment, easy watch setting, approximately 300 world time cities, time & place, reminder, phone finder

Watch Features

• World time: 38 time zones (38 cities + UTC), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, home city/world time city swapping
• Stopwatch: 1/100-second; measuring capacity 00'00''00–59'59''99 (first 60 min), 1:00'00–23:59'59 (after 60 min); measuring unit 1/100 sec (first 60 min), 1 sec (after 60 min); modes: elapsed time, lap/split time
• Timer: Countdown timer; measuring unit 1 second; range 60 minutes; start setting 1 second to 60 minutes (1-second and 1-minute increments)
• Alarm/hourly time signal: 5 daily alarms; hourly time signal
• Light: Double LED light — LED for the face and LED backlight for the digital display (Super Illuminator), selectable 1.5 seconds or 3 seconds, afterglow
• Light colour: LED: White
• Calendar: Full auto-calendar (to year 2099)
• Mute feature: Button operation tone on/off
• Energy saving: Power Saving (display goes blank to save power when left in the dark)
• Battery display/alert: Battery level indicator
• Run time: Approx. 7 months on rechargeable battery (normal use without light after charge); approx. 18 months in total darkness with Power Saving on after full charge
• Accuracy: ±15 seconds per month (with no mobile link function)
• Other: Hand shift feature; 12/24-hour format; date/month display swapping; day display (six languages)
• Regular timekeeping: Analogue: 2 hands (hour, minute; minute hand moves every 20 seconds), 1 dial (battery level, mode). Digital: hour, minute, second, pm, month, date, day

Authorised Casio Retailer

TacTree is an authorised Casio UK retailer. All Casio watches sold are 100% genuine, brand new and supplied directly to us from Casio UK. Each watch is delivered with official Casio packaging, instruction manual and manufacturer warranty, ensuring complete authenticity and peace of mind.

Delivery:

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Northern Ireland or Highlands & Islands available from £3.95

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