G-Shock x C2H4 Collaboration GA-2100C2H426-8A

July 16, 2026
4 minutes read

Casio has introduced a striking new timepiece through its exciting partnership with designer brand C2H4, G-Shock x C2H4 GA-2100C2H426-8A. This wristwatch merges rugged engineering with high-concept fashion aesthetics seamlessly. 

It expands the popular G-Shock lineup by introducing a refined retro-futuristic style. The design of the watch relies on a compelling retro-futuristic aesthetic framework. 

G-Shock x C2H4 GA-2100C2H426-8A
G-Shock x C2H4 GA-2100C2H426-8A

The design of the watch draws heavy inspiration from mid-twentieth-century industrial achievements and optimistic space exploration eras. 

C2H4® itself is a high-concept designer streetwear label founded by Yixi Chen in 2014, operating between Los Angeles and Shanghai. 

The brand combines strict geometric order, innovative material textures, and a distinct retro-futuristic aesthetic inspired by mid-century architecture and industrial design. 

It focuses on functional garments featuring a refined, restrained look under the philosophy of “Motion, Stillness, and Everything in Between.” 

Specification

Excellent physical proportions define the tough exterior shell of this modern collaborative wristwatch. The case structure measures precisely 48.5mm in total length from lug to lug. 

The width spans 45.4mm across the wrist to provide a strong presence. Casio keeps the total thickness down to a highly comfortable 11.8mm. 

The watch weighs a mere 51 grams, which minimizes wrist fatigue during daily use. It fits wrist sizes ranging cleanly from 145mm to 215mm.

G-Shock x C2H4 GA-2100C2H426-8A
G-Shock x C2H4 GA-2100C2H426-8A caseback

The caseback features an engraving of the iconic Los Angeles International Airport Theme Building. 

This structure serves as a famous monument to mid-century Space Age architectural beauty. The design choice introduces a rich layer of cultural history directly onto the wearable hardware.

High-performance materials guarantee the extreme durability that consumers routinely expect from the G-Shock name. 

A specialized Carbon Core Guard structure surrounds the inner electronics to deflect heavy impacts. The watch uses a durable and comfortable resin strap to secure the case tightly. 

A solid piece of tough mineral glass shields the delicate dial from external scratches. The watch achieves water resistance rating down to 200 meters. 

Dial

The dial displays a captivating color scheme dominated by refined metallic silver tones. Master watchmakers apply a sophisticated brushed and polished finishing technique across the entire dial surface. 

A precise vapor deposition process coats the hands and the markers evenly. This manufacturing technique ensures the indicators project a highly premium metallic silver sheen. 

The face features a double analog and digital display layout for clear reading. A translucent resin material forms the protective bezel and the surrounding outer structure. 

This transparent case allows light to pass through the edges of the timepiece beautifully. The design creates an excellent visual balance between industrial structure and modern clarity.

Reliable quartz movement technology powers the internal timekeeping operations of this watch. Two SR726W batteries supply steady power to the module for approximately 3 years. 

The features include an automated calendar that requires no manual adjustments until the year 2099. Owners can travel confidently with a world time function spanning 48 global cities.

The module packs several highly practical secondary features for everyday lifestyle management. Including 1/100 second stopwatch, countdown timer, and 5 daily alarms. 

G-Shock x C2H4 GA-2100C2H426-8A
G-Shock x C2H4 GA-2100C2H426-8A packaging

A hand shift function moves the physical pointers away from the digital window automatically. Dual white LED lights illuminate both the dial and the screen in dark conditions. 

This collaboration perfectly unites advanced timekeeping utility with ambitious designer streetwear fashion.

Furthermore, Casio delivers this special timepiece inside a highly unique capsule-shaped custom gift box. The packaging echoes sleek vintage spaceship aesthetics to maximize overall collectible appeal.

G-Shock x C2H4 Collaboration GA-2100C2H426-8A is priced at $245.

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