With the unveiling of the G-Shock MTG-B4000, Casio has reached a new milestone—not just in terms of engineering or wearability, but in the very way the watch was conceived. For the first time, the brand has harnessed the power of artificial intelligence to co-design its latest premium model. The result is a radically slimmer, smarter, and more refined take on what a modern metal-tough G-Shock should be.
G-Shock’s Premium Frontier Reinvented by AI
Known for its blend of digital resilience and bold aesthetics, G-Shock’s MT-G line occupies a unique space between rugged tool watches and high-end lifestyle statements. Positioned just below the flagship MR-G range, MT-G stands for “Metal Twisted G-Shock”—a series that emphasizes hybrid constructions, integrating metal and resin to ensure strength and shock resistance. But with the MTG-B4000, Casio has taken things a step further by leveraging AI algorithms in the design process, optimizing structure, proportions, and ergonomics like never before.
This technological collaboration marks a shift in how watches can be conceptualized. By using AI to simulate stress points, weight distribution, and wearability scenarios, Casio has sculpted its slimmest MT-G yet, while maintaining the unmistakable G-Shock DNA.
A Technical Leap Forward in a Slimmed-Down Package
At just 12.1mm thick, the MTG-B4000 is the thinnest model in the MT-G series, made possible through a newly reimagined Dual Core Guard structure that pairs carbon-reinforced resin with a sleek metal frame. It houses Casio’s proven Tough Solar technology, Bluetooth synchronization, and Multi-Band 6 radio timekeeping, ensuring world-class accuracy and convenience.
Users can rely on a suite of smart functions—world time, daily alarm, stopwatch, countdown timer, and auto calendar—while enjoying the durability of a sapphire crystal, a 200-meter water resistance rating, and an intuitive one-touch strap swapping system. It’s as tech-driven on the inside as it is on the drawing board.
Designed by Algorithms, Worn by Humans
What makes the MTG-B4000 even more compelling is its fusion of digital design and human style. The colorways—ranging from high-tech blue to black-and-silver with ion plating—underscore its futuristic aesthetic. But more importantly, the AI-enhanced design ensures a more compact and ergonomic shape, making it suitable for everyday use, even for those who found previous MT-G models a touch too bulky.
This is a watch clearly intended for those who straddle both the physical and digital worlds—professionals, creatives, and explorers who appreciate innovation but demand durability. It wears like a performance tool yet carries the confidence of something co-designed with the kind of precision only machine learning can offer.
Final Thoughts, Pricing, and Availability
The MTG-B4000 will be available starting June 2025, with retail prices expected to land around $1,200, depending on the version. It will be distributed through G-Shock’s flagship stores, select retailers, and the brand’s official e-commerce platforms.
With its AI-designed form, lightweight construction, and cutting-edge features, the MTG-B4000 isn’t just a new G-Shock—it’s a glimpse into how watchmaking might evolve when engineers and algorithms work side by side. It feels like a bold step forward—and it wears like one too. In a few words : it’s everything we love about G-Shock ! And if you like innovation in the watch industry, you need to take a look at Moser’s first-ever connected watch.
