Casio has released its latest G-Shock, the MTG-B4000B-1A, in the US market. The watch is priced at $1,500 and arrives stateside following its initial launch in Japan last month.
Design Details
The watch features an updated Dual Core Guard structure made from laminated carbon, glass fiber sheets, and stainless steel. To optimize its impact resistance, Casio utilized a collaborative workflow where human designers drafted initial concepts, AI simulated structural stress, and engineers refined the final shape.
Externally, the watch uses a dual-layer stainless steel bezel treated with a black ion-plated finish. The metal components feature a combination of brushed and mirror finishes. The case back is manufactured using metal injection molding, a process that allows for more complex, dimensional shapes than standard machining. This specific model pairs the black carbon frame with red dial accents and a soft urethane band.
In terms of physical specifications, the MTG-B4000B-1A measures 56.6 by 45.3 by 14.4 mm and weighs 112 grams. It carries Casio’s Triple G Resist rating, meaning the internal module is protected against mechanical shock, centrifugal force, and heavy vibration. The dial is covered by a sapphire crystal with an anti-reflective coating, and the case is water-resistant up to 200 meters.
For daily operation, the watch runs on Casio’s Tough Solar charging system. It includes Bluetooth for pairing with the Casio Watches smartphone app, which manages automatic time synchronization, alarms, and world time settings across 300 cities. For users who prefer a standalone device, it also features Multiband 6 radio control, allowing it to receive time calibration signals directly from six global transmission towers.
The internal battery provides about five months of standard use without light exposure, extending to 18 months if stored in the dark with the power-saving mode enabled. The MTG-B4000B-1A is available now through Casio’s website, though the company currently lists the inventory as limited stock.
In related news, check out the best premium Casio watches to buy in 2026.
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