Casio G-Shock GA-B2100BBR-1ADR

Product Overview

Go bold, tough, and intense with the G-SHOCK Black and Red collection. The GA-B2100BNR takes the streamlined beauty of the octagonal bezel and infuses it with a high-saturation red LCD that pops against the matte black exterior. This design doesn't just push the envelope of daring fashion—it enhances visibility and makes a unique statement of strength.

Beyond its striking looks, this model is a powerhouse of modern utility. Equipped with Tough Solar technology and Bluetooth® Smartphone Link, it ensures you are always in time and always powered up. Built with a Carbon Core Guard structure and eco-friendly bio-based resins, it delivers a lightweight, comfortable experience that remains indestructible.

Major Features

• Carbon Core Guard Structure: A high-strength carbon fiber-reinforced resin case protects the internal module, allowing for a slimmer profile without sacrificing shock resistance.

• Tough Solar Power: Harnesses light from any source to keep the watch running reliably, with a power-saving mode that extends battery life up to 18 months.

• Smartphone Link (Bluetooth®): Connects to the CASIO WATCHES app for automatic time adjustment, easy watch setting, and access to over 300 world time cities.

• High-Visibility Red LCD: A vibrant red digital display creates a dramatic textural contrast against the black dial, optimized for a fashion-forward, tactical look.

• Eco-Friendly Bio-Based Resin: The bezel and band are crafted from renewable organic materials, helping to reduce environmental impact.

• Double LED Super Illuminator: High-brightness lights for both the analog face and digital display ensure perfect readability in total darkness.

Technical Specifications

Basic Information

• Case Size (L× W× H): 48.5 × 45.4 × 11.9 mm

• Weight: 52 g (Ultra-slim and lightweight for all-day comfort)

• Material: Carbon / Bio-based Resin with a Bio-based Resin Band

• Water Resistance: 200-meter (20-bar) water resistance

• Glass: Scratch-resistant Mineral Glass

• Battery Life: Solar rechargeable; approx. 7 months on normal use without light.

Smartphone Link Features

• Auto Time Adjustment: Automatically syncs with your phone for precision accuracy.

• Phone Finder: Locate your smartphone with a simple button press on your watch.

• Time & Place / Reminder: Log specific coordinates or set app-based reminders that appear on your watch.

Watch Features

• World Time: 38 time zones with auto summer time (DST) switching.

• Stopwatch & Timer: 1/100-second precision stopwatch and a 60-minute countdown timer.

• Alarms: 5 daily alarms and an hourly time signal.

• Hand Shift Feature: Hands move out of the way to provide an unobstructed view of the digital display.

• Other: 12/24-hour format, battery level indicator, and date/month display swapping.

Innovation in Design

The Slimmest Evolution

The GA-B2100BNR manages to pack Tough Solar and Bluetooth® technology into an incredibly slim 11.9 mm case. This is achieved through the Carbon Core Guard structure, which provides a rigid frame for the internal components while maintaining the "CasiOak" silhouette that enthusiasts love.

Tactical Red Aesthetics

The red-on-black theme is a tribute to G-SHOCK’s brand colors. The vapor-deposited red finish on the dial components and the high-contrast LCD are designed for trendsetters who want a watch that functions as a high-precision tool and a centerpiece for their street-savviest fashions.