[G-SHOCK Lookbook] GA-B2100 — Bluetooth and Solar Charging to CasiOak

G-SHOCK has upgraded its fan-favorite octagonal 2100 model with Bluetooth connectivity and solar charging.

The GA-2100 launched in 2019 – itself a modern reworking of the classic DW-5000C – with an octagonal bezel quickly earning it the CasiOak nickname and repeatedly selling out.

The five new references – with the new model number GA-B2100 – add Smartphone Link connectivity via Bluetooth and solar charging.

Despite the added functionality of the new models, the GA-B2100 matches the length and width of the GA-2100 and is only 1gm heavier and 0.1mm thicker.

For the first watches in this series, Casio has launched with black/grey and all black as well as returning to the classic shades first used for the 5600, namely yellow, green and blue.

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GA-B2100 Profile / Casio G-Shock
Average Amazon Price: $180 (yes, we may earn a commission on qualifying purchases from our links to Amazon). Check the Price on Amazon →
Year of first release: 2022
The most distinctive specs:
— Retro Look (inherits the design concept of the very first G-SHOCK)
— Carbon Core Guard structure (protects the module by enclosing it in a carbon case. The case is made of fine resin embedded with carbon fibers for outstanding strength and crack resistance)
— Solar-powered (CASIO’s original solar-charging system converts not only sunlight but also light from fluorescent lamps and other sources into power)
— CASIO WATCH App (you may manage all watch settings through your phone)
— Mobile link (Wireless linking using Bluetooth(R)) (for time sync with your phone data)
— 200-meter water resistance (good for swimming but not for deep diving)
Other colors and full specs: GA-B2100 Wiki Page

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Other G-SHOCK listings GA-B2100 is in!

*you may find similar watches there

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