Casio

GM-B2100 (Full Metal CasiOak)

Name: Casio GM-B2100 (Full Metal CasiOak)
Brand: Casio
Availability: InStock

49.8mm Popular Model

Low $299

Median $346

High $400

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The Casio GM-B2100 takes the octagonal “CasiOak” silhouette into stainless steel, with brushed surfaces and polished edges giving the familiar shape a sharper presence. It keeps the analog-digital layout and G-Shock toughness, but the metal bracelet changes the experience on the wrist: this feels substantially heavier than its resin relatives.

Introduced in 2022, the full-metal model pairs solar charging with Bluetooth time adjustment, so it is more than a metal-clad version of the original 2019 watch. Choose the silver GM-B2100D for the clearest view of the finishing, or the black-coated GM-B2100BD for a quieter look; wear through that dark coating can expose brighter steel underneath. The blue-dial GM-B2100AD adds stronger contrast to the silver case. On the wrist, pay attention to how the first bracelet links sit beyond the case, and whether the small digital display is readable at your usual viewing angle.

MovementSolar

Case Size49.8mm

Water Resistance200m

What owners love

The brushed bezel, polished edges and steel bracelet give the familiar octagonal shape noticeably more depth than the resin version. Owners often find themselves enjoying the finishing as much as the design itself.
Tough Solar and Bluetooth time syncing make it easy to live with without routinely setting the hands or replacing a battery. Using the phone app is also much less fiddly than configuring everything through the small display.
It retains the relatively slim profile of the original CasiOak rather than becoming a thick metal G-Shock. The short, downward-angled lugs help it sit better on the wrist than its dimensions might suggest.

Common Criticisms

Legibility is the recurring gripe, particularly on the darker versions: the hands and markers can disappear into the dial in poor light. The small digital display is also hard to read at a glance, and the lume isn't especially strong.
The steel bracelet adds considerable weight compared with a resin CasiOak, and its limited clasp adjustment can make finding a comfortable fit frustrating. Owners who like their watches light can find the change more substantial than expected.
The brushed bezel and polished surfaces pick up visible scratches with everyday wear. It can remain perfectly functional while looking less tidy surprisingly quickly.

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GM-B2100 (Full Metal CasiOak)

What owners love

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