Casio G-Shock M-TG Solar Mens Watch MTGB4000B-1A

The G-Shock MT-G MTGB4000B-1A is a premium analogue watch that represents a landmark in watchmaking — the first G-Shock to feature a structural frame co-developed by human designers and generative artificial intelligence. The result is a watch of remarkable technical sophistication and distinctive visual presence, finished in all-black with touches of vibrant red.

The MTG-B4000 introduces an all-new Dual Core Guard structure, combining laminated carbon and glass fibre sheets with stainless steel components in an intricate, dimensional frame. This hybrid construction was stress-tested through AI simulation and refined by hand, creating a case architecture that meets G-Shock's exacting standards for Triple G Resist protection — guarding against shock, centrifugal force, and vibration simultaneously. The stainless steel bezel features dual-layer inner and outer sections with separate hairline and mirror polished finishes, then ion-plated in black for a refined, textural look.

The dial is the work of Yamagata Casio's precision craftspeople and is protected by a scratch-resistant sapphire crystal with anti-reflective coating for exceptional clarity. The dimensional case back is formed using metal injection moulding (MIM), enabling complex shapes impossible with conventional machining.

For accuracy, the MTGB4000B-1A combines Tough Solar charging, Multiband 6 radio control, and Bluetooth connectivity to the Casio Watches app — providing automatic time correction up to four times daily and access to approximately 300 world time cities. With 200-metre water resistance and a lightweight 112-gram total weight, this is a watch that delivers serious performance without compromise.