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Casio G-Shock GA-2100CM Camouflage Watches: Carbon Core Guard and 200m Water Resistance

Casio’s GA-2100CM camouflage watches pair the 2100-series analog-digital design with Carbon Core Guard, bio-based resin and a 20 bar rating. Compare the two colorways and see the limits of the European launch-price information.
Estimate2–3 min Catalogued SpecialistWatchRanker Team

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Casio’s two new camouflage G-Shock GA-2100CM watches combine the 2100 series’ analog-digital layout with a Carbon Core Guard case, bio-based resin case and strap, and a manufacturer-rated 20 bar (200m) water resistance. Casio’s European announcement set a suggested retail price of €139 and a launch date of March 16, 2026; those are regional launch terms, not confirmation of today’s price or stock.

What are the new Casio G-Shock 2100 camouflage watches?

The GA-2100CM is a camouflage-patterned take on Casio’s 2100-series analog-digital watch. Casio says the original pattern covers both the case and strap, with a G-SHOCK “G” concealed within it. The company frames the GA-2100 line as a modern reinterpretation of its 1983 DW-5000C and associates it with urban streetwear.

There are two announced colorways. Casio’s February 20, 2026 European release describes both as using the same features; it does not identify a specification difference between them.

Model Casio’s color description
GA-2100CM-5AER Gray-green-beige
GA-2100CM-8AER Gray-brown-green

What do Carbon Core Guard and 200m water resistance mean here?

Casio says the Carbon Core Guard case protects the watch module from impacts and shocks. The manufacturer describes the case and strap as bio-based resin made from renewable resources. These are construction and material claims, not independent durability or lifecycle assessments.

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#1 Best Overall
Sale
Casio G-Shock 2100 Series Camouflage Watch GA-2100CM-5AER
  • Gents Watch
  • Bio-based Resin
  • 5 Daily Alarms
  • Auto Calender
  • Hourly Time Signal

The watch is rated to 20 bar, which Casio’s series page expresses as 200m water resistance. This is the manufacturer’s rating; it should not be read as a guarantee for a particular diving activity.

Features, size and battery life

Casio lists an automatic calendar, world time, a 1/100-second stopwatch, five daily alarms, and a three-year battery life. The release also specifies luminous hands and indices and a slide lever for band removal.

Rank #2
Casio G-Shock 2100 Series Camouflage Watch GA-2100CM-8AER
  • Gents Watch
  • Bio-based Resin
  • 5 Daily Alarms
  • Auto Calender
  • Hourly Time Signal
Specification Casio-published detail
Case diameter 45.4 mm
Case height 11.8 mm
Weight 51 g
Water resistance 20 bar (200m)
Battery life Three years

Dimensions, weight and battery-life figures are manufacturer specifications, not results from independent testing. Casio’s GA-2100 series page provides the broader series specifications at Casio’s GA-2100 product page.

Which camouflage colorway should you choose?

The choice established by Casio’s announcement is visual: gray-green-beige for the GA-2100CM-5AER, or gray-brown-green for the GA-2100CM-8AER. The release does not state differences in functions, materials, or construction between the two. Compare the pattern and local listing, and confirm the full model code and regional suffix before buying.

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Rank #3
G-Shock Casio Analog-Digital Camouflage Resin Strap Watch - GA2100CM-5A
  • Fashion forward, camouflage cool - the ever-popular streamlined GA2100 takes on an original G-SHOCK camouflage pattern that adds a bold accent to any style
  • This one-of-a-kind G-SHOCK camouflage pattern cleverly conceals the brand's iconic G-mark in a unique and confident design
  • The bezel and band are made with environmentally friendly bio-based resin, a polymer made from materials extracted from corn

Launch price and availability

Casio’s European press release said both models would be available from March 16, 2026, at a suggested retail price of €139 through Casio.com and selected retailers. That announcement does not establish current stock, a current street price, or pricing and availability outside Europe. Check Casio or a local retailer for present-day listing details. The original announcement is at Casio Europe’s GA-2100CM release.

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Can you change the strap?

The release identifies a slide lever for band removal, which makes a replacement band a relevant consideration. It does not confirm third-party band compatibility. Check fit for the exact GA-2100CM model before ordering an alternative strap.

Quick Recap

SaleBestseller No. 1
Casio G-Shock 2100 Series Camouflage Watch GA-2100CM-5AER
Casio G-Shock 2100 Series Camouflage Watch GA-2100CM-5AER
Gents Watch; Bio-based Resin; 5 Daily Alarms; Auto Calender; Hourly Time Signal; Countdown Timer
$130.65
Bestseller No. 2
Casio G-Shock 2100 Series Camouflage Watch GA-2100CM-8AER
Casio G-Shock 2100 Series Camouflage Watch GA-2100CM-8AER
Gents Watch; Bio-based Resin; 5 Daily Alarms; Auto Calender; Hourly Time Signal; Countdown Timer
$130.92
Bestseller No. 4
G-Shock Men's GA2100CM-8A Camouflage Watch
G-Shock Men's GA2100CM-8A Camouflage Watch
Case size (L× W× H): 48.5 × 45.4 × 11.8 mm; Case and bezel material: Carbon / Bio-based resin
$144.95
Bestseller No. 5
Rank #4
G-Shock Men's GA2100CM-8A Camouflage Watch
  • Case size (L× W× H): 48.5 × 45.4 × 11.8 mm
  • Case and bezel material: Carbon / Bio-based resin
  • Construction: Shock Resistant Carbon Core Guard structure
  • Power supply and battery life: Approx. battery life: 3 years on SR726W X 2
  • Band: Bio-based resin band

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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