Casio G-Shock GA2100 Watch
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The GA2100 Series: Built Different Since 2019
When Casio introduced the GA2100 in 2019, it immediately became one of G-Shock's most popular models. The signature octagonal bezel and digital-analog combination display set it apart from every other watch on the market, and the series has continued to evolve with fresh executions that keep it at the center of the lineup. Whether you are heading into the surf, traveling, or just living your daily routine hard, the GA2100 is engineered to take it.
Octagonal Bezel and Digital-Analog Display
The defining visual of the GA2100 is its boldly geometric octagonal bezel, which frames a dual-layer dial combining traditional analog hands with a digital display window. You get the immediacy of an analog readout at a glance and the precision of a digital module underneath. It is a design that is both visually striking and practically versatile, holding up to scrutiny whether worn on the beach or the boardroom.
Shock Resistance and 200M Water Resistance
G-Shock engineering is the foundation. The GA2100 is built to G-Shock's military and tactical shock resistance standards, protecting the movement from drops, vibration, and impact. Water resistance is rated to 20 BAR (200 meters), making the watch fully capable for swimming, surfing, and water sports without a second thought. This is not a splash-proof watch, it is a water sports tool.
Scratch-Resistant Mineral Glass
The crystal is scratch-resistant mineral glass, protecting the dial from the nicks and abrasions that come with active wear. Select executions in the GA2100 lineup receive a special vapor deposition treatment across the entire surface of the glass, producing a dynamic iridescent finish that shifts in radiance depending on viewing angle and lighting conditions.
Bio-Based Resin Construction
Key resin components in the bezel and band are produced from bio-based resin, made using renewable organic resources. Casio incorporated this material to help reduce environmental impact without compromising the toughness and flexibility that G-Shock wearers expect. The result is a watch that feels as capable as it looks.
Illumination: High-Brightness Double LED (Super Illuminator)
Reading the dial in low light is never a problem. The GA2100 is equipped with G-Shock's high-brightness Double LED Light (Super Illuminator) system, delivering even, bright illumination across both the analog and digital portions of the dial at the press of a button.
Core Functions
- Shock resistant construction to G-Shock military and tactical standards
- 200M (20 BAR) water resistance
- Digital-analog combination display
- Scratch-resistant mineral glass crystal
- High-brightness Double LED Super Illuminator backlight
- Bio-based resin bezel and band components (select variants)
- Vapor deposition glass finish (select variants)
- Mute, alarm, and signal functions
- DST and HND (hand shift) settings
- Day-of-week and date display
Shop the GA2100 at Island Water Sports
The GA2100 is available in store and online at Island Water Sports. Whether you are picking it up for yourself or as a gift, the variant picker above shows what is currently in stock. Questions? Call 954-427-4929 to speak with the team in store.
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Specifications
- Brand
- Casio G-Shock
- Model Series
- GA2100
- Display Type
- Digital-Analog Combination
- Bezel Shape
- Octagonal
- Crystal
- Scratch-Resistant Mineral Glass
- Water Resistance
- 200M / 20 BAR
- Shock Resistance
- G-Shock Shock Resistant
- Illumination
- High-Brightness Double LED Super Illuminator
- Band / Bezel Material
- Bio-Based Resin (key components)
- Special Finish
- Vapor Deposition Glass (select variants)
- Gender Category
- Womens
- Product Type
- Watch
Frequently Asked Questions
- What makes the GA2100 different from other G-Shock models?
- The GA2100 stands out with its iconic octagonal bezel and digital-analog combination display, a design introduced in 2019 that quickly became one of G-Shock's most popular. It combines bold geometric styling with full G-Shock shock and water resistance in a relatively slim profile.
- Is the G-Shock GA2100 good for surfing and water sports?
- Yes. The GA2100 is rated to 200M (20 BAR) water resistance, well above what is required for swimming and surfing. Combined with G-Shock's shock resistance construction, it is built for active water use.
- What is the vapor deposition finish on the GA2100?
- On select GA2100 variants, Casio applies a special vapor deposition treatment to the entire surface of the mineral glass crystal. This creates a dynamic iridescent effect where the color and radiance of the glass shift depending on the viewing angle and ambient lighting, giving each watch a unique visual character.
- What is bio-based resin and why does Casio use it in the GA2100?
- Bio-based resin is a material produced from renewable organic resources rather than petroleum derivatives. Casio uses it for key bezel and band components on select GA2100 variants to help reduce environmental impact, while maintaining the toughness and flexibility expected from a G-Shock.
- How do I read the dial on the GA2100 in the dark?
- The GA2100 is equipped with G-Shock's Super Illuminator system, a high-brightness Double LED backlight that illuminates both the analog and digital portions of the dial. Press the light button for a clear view in any low-light environment.
- Where can I buy the Casio G-Shock GA2100?
- The GA2100 is available in store and online at Island Water Sports in South Florida. Use the variant picker on this page to see current options and pricing, or call 954-427-4929 to speak with the team.
- Is the GA2100 a good travel watch?
- Yes. The GA2100 is designed for everyday durability and portability. Its shock resistance, water resistance, and compact-for-G-Shock profile make it a reliable travel companion, and the digital-analog display gives you time readability in any situation.