Casio Men GA-2100-1AER G-Shock Carbon Core Octagon Series Watch

4.60 (2111)
Best price today
$89.95
Best
AMAZON
4.60 (2111)
In stock
$89.95
Prices last updated Jan 28, 2026

Highlights

  • Shock-resistant design with patented Hollow Core Guard Structure.
  • Water-resistant up to 200 meters, ideal for professional diving.
  • Dual illuminator with selectable illumination duration for low-light readability.
  • Features include stopwatch, countdown timer, and perpetual calendar.
  • World time and dual time functions for global travelers.
  • Lightweight and durable with carbon-reinforced resin casing.
  • Neobright luminous coating on hands for visibility in the dark.

Description

The Casio Men GA-2100-1AER G-Shock Carbon Core Octagon Series Watch is a masterpiece of modern watchmaking, blending rugged durability with sleek, contemporary aesthetics. Designed for the active man, this watch is part of the renowned G-Shock series, known for its unparalleled resistance to shock and vibration. The octagonal shape of the watch adds a unique and stylish touch, making it a standout accessory for any outfit. Crafted with a carbon-reinforced resin casing, this watch is built to withstand the toughest conditions, offering water resistance up to 200 meters, making it suitable for professional diving. The dual illuminator feature ensures that both the analog and digital components are easily readable in low light conditions, thanks to the selectable illumination duration and Neobright luminous coating on the watch hands. The GA-2100-1AER is not just about looks; it is packed with features that cater to the needs of modern men. It includes a stopwatch function with a measuring capacity of 24 hours, a countdown timer, and a perpetual calendar, ensuring you are always on schedule. The world time and dual time features are perfect for the globetrotter, allowing you to keep track of time across different time zones effortlessly. With a comfortable black plastic strap and a robust buckle clasp, this watch is designed for everyday wear and tear. The mineral glass dial window ensures durability while providing a clear view of the time. Whether you're exploring the great outdoors or navigating the urban jungle, the Casio GA-2100-1AER is the perfect companion that combines functionality with style.

Specifications

Manufacturer Casio
Best Sellers Rank #544,161 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #2,655 in Men's Wrist Watches
Customer Reviews 4.6 4.6 out of 5 stars (1,943) 4.6 out of 5 stars
Model Number GA-2100-1ADR
Item Shape Octagonal
Display Type Analog-Digital
Clasp Buckle
Case Material Resin
Case Diameter 48.5 Millimeters
Case Thickness 14 Millimeters
Band Material Plastic
Band Width 22 millimeters
Band Color Black
Dial Color Black
Item Weight 30 Grams
Movement Quartz
Water Resistance Depth Waterproof
Brand Casio
Brand Name Casio
Age Range Description Adult
Model Name G-Shock
Series Number 2100
Item Type Name Watch
Included Components Urban Armor Gear Scout Case for Samsung Galaxy A12 - Black
Item Height 5 centimeters
Power Source Battery Powered
Strap Type Silicone
Sport Type Running/jogging, Fitness., Climbing, Fitness
Embellishment Feature Crystal
Crystal Mineral Glass
Style GA-2100-1AER
Face Style Minimalist
Gtin 04549526241703
Pattern Solid
Band Length 25 Centimeters
Character Fashion
Unit Count 1.00 Count

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