Casio to Release Full-Metal G-SHOCK Watches with Octagonal Bezel

Casio to Release Full-Metal G-SHOCK Watches with Octagonal Bezel

TOKYO, July 28, 2022 — Casio Computer Co., today Ltd. announced the latest additions to its G-SHOCK shock-resistant watches. These three new GMB2100 watches, with a full-metal design now adopted for iconic octagonal bezel of the 2100 line.


Since the 2019 release of the GA2100 — a contemporary interpretation of the very first G-SHOCK, the DW5000C — the slim, simple, streamlined design of the 2100 line has proven popular, especially among younger consumers.


This new shock-resistant GMB2100 watches employ stainless steel as the exterior material for the case, band, and bezel, pushing the 2100 line forward in both full-metal construction and sharp design. To ensure shock resistance in these metal-clad timepieces, the shock-resistant structure created for the iconic shape of the full-metal GMWB5000 was adopted for the screw-back case, band, and bezel joints of these watches as well, with buffering components made of fine resin installed between the bezel and case.


The bezel, put through meticulous processes — first forging, then cutting and polishing — are precisely crafted for an intricately shaped face that is eye-catchingly solid and stylish. To accentuate the beauty of the metal, the components are treated with different finishes — the bezel with a circular hairline finish on its top surface, the band with a vertical hairline finish, and the bezel bevel, buttons and case back with a mirror finish. The dial is composed of multiple parts to create depth and dimension, while the inset dial ring at the 9 o’clock position and the index marks are treated with a vapor deposition finish for a watch face with a truly quality look.


The three new watches are the silver GMB2100D with stainless steel gleam, the chic GMB2100BD with black ion plating, and the GMB2100GD with bright rose gold, for versatility suited to every style and occasion.


The new watches also deliver practical utility with a Tough Solar charging system that eliminates the need to regularly replace the battery. They are also equipped with Smartphone Link* connectivity via Bluetooth® for accurate timekeeping and easy setting of alarms, countdown timer, world time and other functions from a smartphone app.

* Requires downloading the dedicated CASIO WATCHES app.




GMB2100D GMB2100BD GMB2100GD





Water Resistance

200 meters



Bluetooth® low energy

Signal Range

Up to 2 meters (may differ depending on surrounding conditions)


1/100 second (00’00”00~59’59”99) /1 second (1:00’00” ~23:59’59”); measuring capacity: 23:59’59.99"; measuring modes: elapsed time, lap/split time

Countdown Timer

Measuring unit: 1 second (maximum 1 hours)


5 daily alarms; hourly time signal

Mobile Link Features

(Wireless linking with Bluetooth® devices)

Other Functions

Power Source

Tough Solar power system (solar-charging system)

Size of Case


Total Weight

Approx. 165g


GMB2100D-1A $999

GMB2100BD-1A $1099

GMB2100GD-5A $1099

AU Release Date

September 2022

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Casio Computer Co., Ltd. is under license.

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