G-Shock GA-2100-1A1
G-Shock GA-2100-1A1 Dial
G-Shock GA-2100-1A1 Side
G-Shock GA-2100 Wrist Shot

G-SHOCK GA-2100

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The G-Shock GA-2100 was launched in 2019 and quickly reached classic status in just a few years, achieving a place alongside such long-running models like the DW-5600 from the ’80s, the DW-6900 from the ’90s, and the GA-110 from the ’10s. The GA-2100 is akin to a DW-5600 in an analog-digital form. The bezel and band of the watch borrows their shapes from the classic DW-5000 origin model, and the octagonal bezel has earned it the nickname “CasiOak” among fans.

$99.00

Categories: , , , , Tags: , , ,

List Price: $99 (GA2100-1A1)

Size: Medium
Dimensions (L x W x H): 48.5 x 45.4 x 11.8 mm
Weight: 51 grams
Module: 5611 (instruction manual at casio.com)
Battery Type (Lifespan): SR726W X 2 (approx. 3 years)
Series Launch Year: 2019
Nickname: CasiOak

Notable Features: Carbon Core Guard, World Time, Stopwatch, Timer, 5 Daily Alarms, Double LED Light with LCD Backlight

Note: Some GA-2100 models have Neobrite luminous hands, but the full black GA-2100-1A1 does not. It has some sort of lume, but it is not as bright as the Neobrite lume. (We also noticed that the Neobrite spec was later removed on the other two launch models: GA-2100-1A and GA-2100-4A.

See full specifications for GA2100-1A1 under “Additional information” tab above.

Suggested Uses: Military, Outdoors, Streetwear

Latest GA-2100 News

Recent GA-2100 Releases:

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GA-2100 Versus GA-100


  • Overview
  • Description
  • Brand/Store
  • Availability
  • User Rating
  • Review
  • Specification
  • Size
  • Dimensions (L x W x H mm)
  • Weight (g)
  • Protection
  • Case Material
  • Bezel Material
  • Band Material
  • Glass
  • Neobrite
  • Carbon Core Guard
  • Battery
  • Battery Life (Approx.)
  • World Time
  • World Time Zones
  • World Time Cities
  • Daylight Saving Time
  • Stopwatch
  • Stopwatch Unit
  • Stopwatch Max Range
  • Measuring Modes
  • Countdown Timer
  • Countdown Timer Unit
  • Countdown Range
  • Countdown Setting Range
  • Countdown Setting Increment (Lowest)
  • Alarm
  • Hourly Time Signal
  • Light Type
  • Light Color
  • Calendar
  • Button Tone On/Off
  • Hand Shift
  • 12/24-Hour Format
  • Compatible Band Size (mm)
  • G-SHOCK GA-2100

    G-SHOCK GA-2100

    8
    $99.00

  • The G-Shock GA-2100 was launched in 2019 and quickly reached classic status in just a few years, achieving a place alongside such long-running models like the DW-5600 from the ’80s, the DW-6900 from the ’90s, and the GA-110 from the ’10s. The GA-2100 is akin to a DW-5600 in an analog-digital form. The bezel and band of the watch borrows their shapes from the classic DW-5000 origin model, and the octagonal bezel has earned it the nickname “CasiOak” among fans.

  • In stock
  • -
  • Build
    8
    Functions
    7
    Value
    9

  • Medium

  • 48.5 x 45.4 x 11.8

  • 51

  • 200-Meter Water Resistance, Shock Resistant

  • Carbon, Resin

  • Resin

  • Resin

  • Mineral

  • Varies

  • Carbon Core Guard

  • SR726W X 2

  • 3 Years

  • World Time

  • 31

  • 48 + UTC

  • DST On/Off

  • Stopwatch

  • 1 second (after first hour), 1/100 second (first hour)

  • 23:59’59”

  • 1st-2nd place times, elapsed time, split time

  • Countdown Timer

  • 1 second

  • 24 hours

  • 1 second to 24 hours

  • 1 second

  • 5 Daily

  • Hourly Time Signal

  • 1.5 or 3 Second Afterglow, Double LED, LCD Backlight, LED, Super Illuminator

  • White

  • Full Auto Calendar to 2099

  • Button Tone On/Off

  • Hand Shift

  • 12/24-Hour Format

  • 145 to 215

  • G-SHOCK GA-100

    G-SHOCK GA-100

    7.7
    $110.00

  • The popular G-Shock GA-100 features a large case and is a popular model with law enforcement and other uniformed workers.

  • In stock
  • -
  • Build
    7
    Functions
    7
    Value
    9

  • Large

  • 55 x 51.2 x 16.9

  • 70

  • 200-Meter Water Resistance, Magnetic Resistant, Shock Resistant

  • Resin

  • Resin

  • Resin

  • Mineral

  • CR1220

  • 2 Years

  • Home/World Time City Swap, World Time

  • 29

  • 48 + UTC

  • DST On/Off

  • Speed Indicator, Stopwatch

  • 1/1000 second

  • 99:59’59.999”

  • elapsed time, lap times, split time

  • Auto-repeat, Countdown Timer

  • 1 second

  • 24 hours

  • 1 minute to 24 hours

  • 1 minute

  • 5 Daily with 1 Snooze

  • Hourly Time Signal

  • 1.5 or 3 Second Afterglow, Auto, LED

  • Amber

  • Full Auto Calendar to 2099

  • 12/24-Hour Format

  • 145 to 215

Buy GA2100
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Some specs for individual models may differ within a series, such as price, materials, weight, etc. Dollar prices are in U.S. currency unless otherwise noted. Click the link icons in the gallery images for articles on specific models. Gallery images with "(casio.com)" are linked to an official Casio product page. Follow your country's official G-Shock site (gshock.casio.com) for more release information.
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8Expert Score
G-Shock GA-2100 Rating By G-Central
The G-Shock GA-2100 is recommended for those who want a simple, compact, and lightweight analog-style watch. The digital functions like world time, stopwatch, and timer, may also come in handy, but the small LCD makes using them more challenging than a full digital model.
Build
8
Functions
7
Value
9
PROS
  • The slimmest active G-Shock model for men.
  • Lightweight, lighter than the DW-5600.
  • LCD has a backlight (unlike the GA-1XX series).
  • Clean dial design.
CONS
  • LCD display is very small.
  • Not all models have Neobrite lume.
  • LED light for hands is not very strong.
  • No auto activation setting for light.
  • Needs maintenance (battery replacement) every few years.

Specification: G-SHOCK GA-2100

Size

Dimensions (L x W x H mm)

48.5 x 45.4 x 11.8
Weight (g)

51
Compatible Band Size (mm)

Protection

,

Case Material

,

Bezel Material

Band Material

Resin
Glass

Neobrite

Varies
Carbon Core Guard

Battery

SR726W X 2
Battery Life (Approx.)

World Time

World Time Zones

31
World Time Cities

48 + UTC
Daylight Saving Time

Stopwatch

Stopwatch Unit

,

Stopwatch Max Range

Measuring Modes

1st-2nd place times, elapsed time, split time
Countdown Timer

Countdown Timer Unit

1 second
Countdown Range

Countdown Setting Range

Countdown Setting Increment (Lowest)

1 second
Alarm

Hourly Time Signal

Hourly Time Signal
Light Type

, , , ,

Light Color

White
Calendar

Full Auto Calendar to 2099
Button Tone On/Off

Button Tone On/Off
Hand Shift

Hand Shift
12/24-Hour Format

12/24-Hour Format
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