CASIO G-SHOCK GA-2100CM-8ADR 2100 ANALOG-DIGITAL GREY METALLIC CAMO WATCH
CASIO G-SHOCK GA-2100CM-8ADR 2100 ANALOG-DIGITAL GREY METALLIC CAMO WATCH
CASIO G-SHOCK GA-2100CM-8ADR 2100 ANALOG-DIGITAL GREY METALLIC CAMO WATCH
CASIO G-SHOCK GA-2100CM-8ADR 2100 ANALOG-DIGITAL GREY METALLIC CAMO WATCH
CASIO G-SHOCK GA-2100CM-8ADR 2100 ANALOG-DIGITAL GREY METALLIC CAMO WATCH
CASIO G-SHOCK GA-2100CM-8ADR 2100 ANALOG-DIGITAL GREY METALLIC CAMO WATCH
CASIO G-SHOCK GA-2100CM-8ADR 2100 ANALOG-DIGITAL GREY METALLIC CAMO WATCH
CASIO G-SHOCK GA-2100CM-8ADR 2100 ANALOG-DIGITAL GREY METALLIC CAMO WATCH

CASIO G-SHOCK GA-2100CM-8ADR 2100 ANALOG-DIGITAL GREY METALLIC CAMO WATCH

GA-2100CM-8ADR

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  • 1 Year Warranty

Case size (L× W× H): 48.5 × 45.4 × 11.8 mm
Weight: 51 g
Case and bezel material: Carbon / Bio-based resin
Bio-based resin band
Mineral Glass
Shock Resistant
Carbon Core Guard structure
Water resistance: 200-meter water resistance
Approx. battery life: 3 years on SR726W X 2

World time
31 time zones (48 cities + coordinated universal time), daylight saving on/off

Stopwatch
1/100-second stopwatch

Measuring capacity:
00'00''00~59'59''99 (for the first 60 minutes)
1:00'00~23:59'59 (after 60 minutes)
Measuring unit:
1/100 second (for the first 60 minutes)
1 second (after 60 minutes)
Measuring modes: Elapsed time, split time, 1st-2nd place times

Timer
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
Alarm/hourly time signal
5 daily alarms
Hourly time signal

Light
Double LED light
LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
LED:White

Calendar
Full auto-calendar (to year 2099)

Mute feature
Button operation tone on/off

Accuracy: ±15 seconds per month

Other features
12/24-hour format
Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
Regular timekeeping:
Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)
Digital: Hour, minute, second, pm, month, date

The GA-2100CM-8ADR is the grey metallic camo edition of the GA-2100 — the streamlined octagonal G-Shock dressed in G-Shock's original camouflage pattern with a metallic print finish that elevates the camo from matte military to something with sheen and sophistication. The grey palette sits squarely in gorpcore territory — urban outdoor fashion that blends technical utility with street style. The bezel and band are made with bio-based resin derived from corn, and the G-Shock G-mark is cleverly concealed within the camo pattern on both surfaces.

Module 5611 is the same platform as the metal-bezel GM-2100: analog-digital with two hands (hour, minute) and a day sub-dial, hand shift for unobstructed digital reading, world time across 31 time zones (48 cities), 1/100-second stopwatch with split time, 24-hour countdown timer, five daily alarms, double LED Super Illuminator (separate LEDs for face and digital display), Neobrite lume, and a full auto-calendar to 2099. Carbon Core Guard structure protects the module. At 48.5 × 45.4 × 11.8 mm and just 51 grams, the GA-2100 is one of the lightest and slimmest G-Shocks available — the same 11.8 mm profile as the metal-bezel GM-2100, but 33 grams lighter because the entire case is resin. Shock resistant, 200-metre water resistant. SR726W × 2, approximately three-year battery life.

At a Glance

Case & BezelCarbon / Bio-Based Resin — Grey Metallic Camo
BandBio-Based Resin — Grey Metallic Camo with Hidden G-Mark
Camo PrintMetallic Finish — Original G-Shock Pattern
ConstructionShock Resistant · Carbon Core Guard
DisplayAnalog-Digital (2 Hands + Day Sub-Dial + LCD)
Hand ShiftYes
LightDouble LED Super Illuminator (Face + Digital)
Module5611
Case Size48.5 × 45.4 × 11.8 mm
Weight51 g
Water Resistance200 Metres (20 BAR)
Collection2100 Series — Camo

Why You'll Love It

  • The metallic camo print is what sets this apart from standard camo G-Shocks. The grey camouflage has a metallic sheen — a reflective quality in the print that shifts as light moves across the surface. It's not matte military camo; it's fashion camo with a metallic finish that reads as sophisticated rather than tactical. The grey-on-grey tonal palette works with gorpcore, urban outdoor, and monochrome streetwear — essentially any outfit where texture matters more than colour.
  • At 51 grams, the GA-2100CM is one of the lightest G-Shocks you can buy. For context, the metal-bezel GM-2100YRA is 84 grams and the Bold Camo DW-6900CF is 67 grams. The all-resin construction with Carbon Core Guard keeps the watch featherweight without compromising shock resistance. If you want the 2100's slim octagonal profile without any metal weight, this is it.
  • The 11.8 mm slim profile is identical to the metal-bezel GM-2100. The GA-2100CM slides under a shirt cuff, sits flat on the wrist, and doesn't catch on sleeves. Combined with the 51-gram weight, it's one of the most comfortable G-Shocks for all-day wear — you forget it's there.
  • Bio-based resin made from corn-derived polymer is used for the bezel and band. It's the same material used in other recent G-Shock releases — produced using renewable organic resources to reduce environmental impact. The sustainability angle is part of the gorpcore identity: outdoor fashion with environmental awareness.
  • The hidden G-mark is woven into the camo pattern on the bezel and band — a discovery detail that reveals itself on close inspection. G-Shock's original camo design, not a stock military pattern.
  • Hand shift, world time (48 cities), double LED, 5 daily alarms, Carbon Core Guard — the full GA-2100 spec sheet in a 51-gram camo package. The functions don't scale down with the weight.

Perfect For

Gorpcore Urban Outdoor Everyday Wear Streetwear Smaller Wrists Travel Swimming & Water Sports Gift

Key Features

  • Grey metallic camo print — Original G-Shock camouflage pattern with metallic sheen finish on bio-based resin. Hidden G-mark concealed in the camo on bezel and band.
  • Ultra-light — 51 g — One of the lightest G-Shocks available. All-resin construction with Carbon Core Guard. Same slim 11.8 mm profile as the metal-bezel GM-2100.
  • Hand shift + Double LED Super Illuminator — Hands retract for clear digital reading. Separate LEDs for analog face and digital display.
  • World time — 31 time zones (48 cities + UTC) — With daylight saving on/off switching.
  • Bio-based resin — Bezel and band made from corn-derived polymer. Renewable organic resource with reduced environmental impact.
  • 200-metre water resistance (20 BAR) — Suitable for swimming, snorkelling, and recreational water sports.

Technical Specifications

The GA-2100CM-8ADR is a G-Shock 2100 Series analog-digital watch running Module 5611. It features a carbon/bio-based resin case and band with grey metallic camouflage print, Carbon Core Guard, hand shift, double LED Super Illuminator, world time (48 cities), and 200-metre water resistance. Case dimensions are 48.5 × 45.4 × 11.8 mm at 51 g with approximately 3-year battery life on SR726W × 2.
Case & Build
Model Number GA-2100CM-8ADR
Module 5611
Case Material Carbon / Bio-Based Resin
Exterior Pattern Grey Metallic Camouflage Print (Bezel & Band)
Construction Shock Resistant, Carbon Core Guard
Glass Mineral Glass
Case Size (L × W × H) 48.5 × 45.4 × 11.8 mm
Weight 51 g
Water Resistance 200 Metres (20 BAR)
Band
Material Bio-Based Resin
Pattern Grey Metallic Camouflage with Hidden G-Mark
Wrist Size 145 – 215 mm
Clasp Tang Buckle
Movement & Power
Movement Type Quartz Analog-Digital
Analog Display 2 hands (Hour, Minute — moves every 20 seconds), 1 sub-dial (Day)
Digital Display Hour, Minute, Second, AM/PM, Month, Date
Hand Shift Yes — hands retract for unobstructed digital view
Accuracy ±15 seconds per month
Battery SR726W × 2
Battery Life Approx. 3 years
Display & Light
Lume Neobrite
Backlight Double LED Super Illuminator (Face + Digital, separate LEDs)
Illumination Duration Selectable 1.5s or 3s, afterglow
LED Colour White
Functions
World Time 31 time zones (48 cities + UTC), DST on/off
Stopwatch 1/100-second (first 60 min) / 1-second (after 60 min), 24-hour capacity; elapsed, split, 1st–2nd place
Countdown Timer 1-second unit, 1 sec – 24 hours
Alarm 5 daily alarms + hourly time signal
Calendar Full auto-calendar to 2099
Time Format 12/24-hour
Mute Button tone on/off

Best Matched With

Technical Outerwear Grey Hoodie Cargo Pants Trail Runners Monochrome Layers Gorpcore Kit Denim & Flannel

Frequently Asked Questions

What is the difference between the GA-2100CM and the GM-2100?
Same Module 5611, same functions, same 11.8 mm slim profile. The GA-2100CM (this model) is all bio-based resin with metallic camo print — 51 g, no metal. The GM-2100 has a stainless steel bezel on a resin body — 84 g, with better scratch resistance and a more refined metal look. Choose the GA for ultra-light weight, camo styling, and bio-based materials. Choose the GM for metal-bezel elevation and polished sophistication.
What is the metallic print?
The camouflage pattern on the bezel and band is printed with a metallic finish — the grey camo has a reflective sheen that shifts as light moves across the surface. It's not a flat matte camo; the metallic quality adds a subtle sparkle and depth that takes the pattern from military to fashion-forward. Casio describes it as taking "ordinary camouflage to a whole new level of sophistication".
What is Carbon Core Guard?
Carbon Core Guard is G-Shock's construction method using a carbon-reinforced resin inner case to house the module. It provides shock resistance and structural rigidity while keeping the weight down. On the GA-2100CM, it's the reason the watch weighs only 51 grams despite being a full-featured analog-digital G-Shock with 200m water resistance.
What is bio-based resin?
The bezel and band are made from a polymer derived from corn — produced using renewable organic resources rather than petroleum-based materials. It performs identically to standard resin in terms of durability, comfort, and water resistance. The sustainability benefit is reduced reliance on fossil-fuel-derived plastics.
Is this watch suitable for swimming?
Yes. With 200-metre (20 BAR) water resistance, the GA-2100CM-8ADR handles swimming, snorkelling, and recreational water sports. Not rated for scuba diving with air tanks.
What warranty does this watch come with?
The GA-2100CM-8ADR comes with Casio's official warranty when purchased from City Chain Singapore, an authorised Casio retailer.

Why Buy from City Chain Singapore

Authorised Retailer Official Casio warranty
100% Authentic Genuine Casio product
Free Shipping Within Singapore

Extra $15 OFF with min. $200 spend
Use Code: FORYOU15

Extra $30 OFF with min. $400 spend
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Delivery within Singapore | Order by 11AM
(Checkout options may vary depending on minimum order requirements)

• Free Standard Delivery (3 business days)
• Free Next Day Delivery
• Express Delivery at $30 (order by 2PM)
• Click & Collect (ready in 2–3 business days)

Weekend & Public Holiday Orders
Orders placed during this time will be processed on the next business day.

For online purchase, you can have bracelet or leather strap adjustments done at any City Chain store. Please bring along your warranty book for the service.


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