Casio G-Shock GA-2100GB-1A black watch
Casio G-Shock GA-2100GB-1A black watch
Casio G-Shock GA-2100GB-1A black watch
Casio G-Shock GA-2100GB-1A black watch

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G-SHOCK GA-2100GB-1A

$145.00
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The octagon G-Shock everyone calls the CasiOak.

The GA-2100 is the slim, carbon-reinforced 2100 case with an analog-digital face, 200-meter water resistance and world time.

Our take

Thin, light and easy to wear every day. If you want one G-Shock that works with a dress shirt, this is the shape.

Know before you buy

Case: 48.5 × 45.4 × 11.8 mm. Water resistance: 200 meters....

  • Sku: GA2100GB-1A
  • Available: Available to order
  • Vendor: G-Shock
Usually ships within 7–10 business days.
Casio G-Shock GA-2100GB-1A black watch
G-SHOCK GA-2100GB-1A
$145.00

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The octagon G-Shock everyone calls the CasiOak.

The GA-2100 is the slim, carbon-reinforced 2100 case with an analog-digital face, 200-meter water resistance and world time.

Our take

Thin, light and easy to wear every day. If you want one G-Shock that works with a dress shirt, this is the shape.

Know before you buy

Case: 48.5 × 45.4 × 11.8 mm. Water resistance: 200 meters. Crystal: mineral glass.

Open Technical Data for the full dimensions and materials, or Features for the function list.

<Casio G-Shock GA-2100GB-1A black watch

  • Collection: ANALOG-DIGITAL
  • Case Size: 48.5 × 45.4 × 11.8 mm
  • Weight: 51 g
  • Case Material: Carbon / resin
  • Bezel Material: Resin
  • Strap Material: Resin
  • Shock Proof: Shock Resistant
  • Water Resistance: 200 meters
  • Glass Material: Mineral glass
  • Power Supply And Battery Life: Approx. 3 years on SR726W x 2

Casio G-Shock GA-2100GB-1A black watch

  • Analog-digital display
  • World time: 31 time zones (48 cities + UTC), daylight saving on/off
  • Stopwatch: 1/100-second for the first hour, then 1 second, up to 23:59'59''
  • Countdown timer: 1-second unit, 24-hour range
  • 5 daily alarms and hourly time signal
  • LED light with Super Illuminator and afterglow
  • Full auto-calendar (to year 2099)
  • 12/24-hour format
  • Accuracy: ±15 seconds per month

Casio G-Shock GA-2100GB-1A black watch

G-SHOCK, the watch that brought the new concept of toughness to the timepiece.
It began with a reckless challenge to the conventional wisdom of the day, a developer’s belief that it was possible to construct a watch that wouldn’t break, even if dropped. Project Team Tough was formed to build it in 1981.
The team created over 200 prototypes one after another over a period of about two years. They finally arrived at a shock-resistant structure. This marked the birth of a technology that is tough to the core.
And G-SHOCK has continued its unceasing evolution ever since, in pursuit of greater toughness in every respect, from structure and materials to functions. Today, the development team’s passion for challenge and constant efforts have reached fruition in Triple G Resist, a structure with the strength to withstand 3 types of gravitational acceleration.

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