How is this different from a standard GA-2100?

It is the same slim octagonal case and module, with a camouflage-patterned dial and matching accents. The plain GA-2100 models are easier to read and dress up more easily.

Is it good for swimming?

Yes. It is rated to 200 m and is fine for swimming and snorkeling. Casio does not rate it for scuba diving.

Does it need charging or a battery change?

It runs on a standard quartz battery, not solar. Expect a battery change every few years depending on alarm and light use.

Can I read it in the dark?

It has an LED light for the display, but the dark negative LCD stays low-contrast. The analog hands have no lume, so night reading relies on the light button.

Does it connect to a phone?

No. There is no Bluetooth or app support, so time, alarms and world time are set with the buttons.

How big is it on the wrist?

The case is about 45 mm across and roughly 11 mm thick, so it wears smaller than most G-Shocks but still reads as a full-size watch.

All Travel Tech Clothes Shoes Jewelry Home Beauty Outdoors Toys

This hour's deals

Casio G-Shock GA-2100CMD-8A Camouflage Camo Dial Analog-Digital Watch

−49%

Clothes · Best Buy

Casio G-Shock GA-2100CMD-8A Camouflage Camo Dial Analog-Digital Watch

Name: Casio G-Shock GA-2100CMD-8A Camouflage Camo Dial Analog-Digital Watch
Brand: Casio
Availability: InStock

Deal score 4.9 · Good deal

$138.49$270.00 Best Buy's regular price

You save $131.51 at Best Buy

Deal.ai's agents found this deal on November 11. The store may have changed its price since.

Why it's a great deal

Elsewhere right now: Walmart $149.67, Zaytoun Solutions $246.36 (typical $198.02 across 2 stores)
Best Buy lists its regular price at $270.00: 49% off by its own figures
Rated 4.8 out of 5 by 90 buyers

Visit Best Buy

Every store we checked

CreationWatches.comNew
In stockShips from abroad · duties may apply
$116.85Checked 35 min ago
Visit CreationWatches.com
CreationWatchesNew
In stock
$123.00Free shippingChecked 35 min ago
Visit CreationWatches
WatchspreeNew
In stockShips from Singapore · duties may apply
$131.45Checked 35 min ago
Visit Watchspree
Best BuyNew
In stock
$138.49Checked 35 min ago
Visit Best Buy
WalmartNew
In stockSold by CW WATCHESReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$149.67Free shippingChecked 35 min ago
Visit Walmart
LoadedNew
In stockShips from abroad · duties may apply
$155.81Checked 35 min ago
Visit Loaded
Watches & PensNew
In stock
$204.41Checked 35 min ago
Visit Watches & Pens
eBayNew
Availability unknownSold by popcorn0306
$129.00Checked 15 h ago
Visit eBay
Zaytoun SolutionsNew
Availability unknown
$246.36Checked 35 min ago
Visit Zaytoun Solutions

Store links may earn us a commission. Some prices via Klarna.

Price history and every store's price →

Reading Best Buy’s product page for the details…

About it

The Casio G-Shock Analog Digital Camouflage GA-2100CMD-8A is built for men who demand toughness, style, and everyday practicality. Featuring a stealthy black dial with camouflage accents, this 200M water-resistant quartz watch is ready for outdoor adventures, gym sessions, and daily urban wear. The slim, octagonal case and bio-based resin strap deliver lightweight comfort while supporting more sustainable material choices. Shock resistance, reliable analog-digital timekeeping, world time, stopwatch, countdown timer, and alarm functions make it a powerful tool for active lifestyles. The bright illumination and clear display ensure legibility in low light, while the durable mineral glass protects against knocks and scratches. Backed by Casio’s renowned G-Shock reputation for extreme durability and precision, the GA-2100CMD-8A is ideal for men seeking a rugged military-style watch that combines modern design, advanced features, and long-lasting performance.

Specs

Series: Casio G-ShockSource
Movement Type: QuartzSource
Color (Strap): BlackSource
Display Type: DigitalSource
Dial Color: BlackSource
Functions: Timer, StopwatchSource
Gender: MaleSource
Water Protection: 20 ATM (200m)Source
color: BlackSource

About the Casio G-Shock GA-2100CMD-8A Camouflage Camo Dial Analog-Digital Watch

The GA-2100CMD-8A is a camouflage-dial version of Casio's slim octagonal G-Shock, the GA-2100 line often called the CasiOak. It pairs analog hands with a digital window, a carbon-core guard case, 200 m water resistance, world time, stopwatch, countdown timer and alarms. At roughly 11 mm thick it wears far slimmer than classic square or chunky G-Shocks, which is why owners treat it as an everyday watch rather than a gym-only beater. The camo dial is the main draw and the main divider: bolder than the plain black models, less versatile with formal clothes.

Best forEveryday wear with casual and street outfitsOutdoor and gym use where shock and water resistance matterBuyers who want G-Shock toughness in a slim caseFans of military-style camo designs

Pros

Slim octagonal case sits flat on the wrist
200 m water resistance and shock resistance
Analog-digital display with world time, stopwatch, timer and alarms
Carbon-core guard construction keeps it light
Mineral glass and bio-based resin strap

Cons

More deals like this