Casio G-Shock GA-B2100LUU-5A

This professional product description is designed for the GA-B2100 Urban Utility series, a high-tech evolution of the iconic octagonal "CasiOak" that blends gorpcore fashion with advanced solar and Bluetooth functionality.

Product Overview

Sporty practicality meets urban street sensibility. The Urban Utility line of G-SHOCK reimagines the iconic 2100 silhouette through a "gorpcore" lens—combining functional outdoorsy touches with a refined urban aesthetic. This model comes in subtle, earthy tones designed to integrate seamlessly into modern street fashion.

Beyond its stylish exterior, this is a powerhouse of modern horology. Equipped with Tough Solar power and Smartphone Link via Bluetooth, this watch ensures you stay perfectly in time across the globe. Constructed with bio-based resins and a Carbon Core Guard structure, it delivers a lightweight, comfortable fit while maintaining the absolute toughness G-SHOCK is known for.

Major Features

• Tough Solar Power: Stable solar charging converts even weak light into power, ensuring the watch remains operational without the need for battery replacements.
• Smartphone Link (Bluetooth): Automatically adjusts the time by connecting to your phone. Includes a Phone Finder, Reminder, and easy watch setting via the CASIO WATCHES app.
• Carbon Core Guard: A high-strength carbon fiber-reinforced resin case protects the module, resulting in a slim 11.9mm profile and a lightweight feel.
• Eco-Friendly Bio-Based Resin: The bezel and band are crafted from renewable organic resources to help reduce environmental impact.
• Double LED Super Illuminator: High-brightness white LED lights for both the analog face and digital display ensure total readability in the dark.
• 20-Bar Water Resistance: Fully reliable for high-pressure water environments, including swimming and professional marine activities.

Technical Specifications

Basic Information

• Case Size (L× W× H): 48.5 × 45.4 × 11.9 mm
• Weight: 52 g (Slim and ultra-lightweight)
• Material: Carbon / Bio-based Resin with a Bio-based Resin Band
• Construction: Shock Resistant; Carbon Core Guard structure
• Power Supply: Tough Solar (Solar powered)
• Glass: Scratch-resistant Mineral Glass with Neobrite hands

Smartphone Link Features

• Auto Time Adjustment: Connects to your phone for precise local time.
• World Time: Approximately 300 world time cities available via the app.
• Time & Place: Records your current location on a map in the app with a single button press.
• Phone Finder: Triggers an alert on your smartphone to help you locate it.

Watch Features

• World Time: 38 time zones (38 cities + UTC) with Home city/World time swapping.
• Stopwatch: 1/100-second precision with elapsed time and lap/split modes.
• Hand Shift Feature: Hands move out of the way to provide an unobstructed view of the digital display.
• Power Saving: The display goes blank to save power when the watch is left in the dark.
• Battery Indicator: Real-time battery level indicator on the sub-dial.

Urban Style Meets Outdoor Utility

The Gorpcore Aesthetic

The Urban Utility series is designed for the modern trendsetter who values both form and function. The subtle color palette is inspired by nature but refined for the city, allowing it to pair effortlessly with tactical gear or casual street outfits.

Always Connected, Always Powered

With its rechargeable battery, this watch can operate for up to 7 months on a full charge with normal use and no light exposure—or up to 18 months in total darkness with power save enabled. It is a reliable, self-sustaining tool for the digital age.