Casio’s MT-G range welcomes the MTGB4000, a carbon-fibre watch whose case strength and finish were fine-tuned by generative AI.
G-Shock’s MT-G family steps into the algorithm era with the MTGB4000, a watch shaped by an unusual design duet: Casio’s team sketched the form, then asked generative AI to refine the case’s strength and weight. The result keeps the line’s fortitude while trimming bulk.
Two versions launch first. The MTGB4000-1A lists at $1,250; the MTGB4000B1A2 at $1,350. Both share a frame laminated from carbon and glass-fibre sheets, their layers visible along the sides like geological strata. Inside, an evolved Dual Core Guard system meets the band links, absorbing shocks before they reach the inner module.
Surface finishing stays distinctly MT-G. Sallaz-polished edges catch light, hairline and mirror planes trade gloss for grain, and a sapphire crystal with anti-reflective coating tops a dial built on multiple tiers. The case-back, formed through metal-injection moulding, adds sculptural depth while sealing the 200-metre water resistance. The B1A2 receives a blue-grey ion-plated coat that recalls twilight steel.
Functionality reads like a greatest-hits list. Tough Solar charging feeds the module, Multi-Band 6 radio keeps time to the second, and Smartphone Link handles Bluetooth adjustments. Triple G Resist stands guard, while a Super Illuminator LED lights the dial at night. Stopwatch, countdown timer, alarm, and world-time readout for 27 cities supply everyday utility.
Production stays domestic: every MTGB4000 is machined and assembled at Yamagata Casio, where the brand’s most intricate models take shape. AI may be edging into design studios everywhere, but here it serves the oldest watchmaking aim—ensuring the case survives whatever the day sends its way, and looks good doing so.
