New Casio G-Shock MTG-B4000 carbon frame watch now available in the US

The Casio G-Shock MTGB4000B-1A watch is now available in the US. This model was spotted alongside the MTGB4000BD-1A in April 2026 and is set to be officially released in Japan in May 2026.

Now, US retailer Arizona Fine Time is selling the Casio G-Shock MTGB4000B-1A for $1,500. This is the same RRP as the older MTGB4000B-1A2 (curr. $1,500 from AZFineTime via Amazon). The company is offering a range of shipping options to customers, with the model appearing to be shipping immediately.

Casio’s G-Shock MTGB4000B-1A watch uses the brand’s Triple G Resist technology, and also has a Dual Core Guard structure combining carbon fiber and stainless steel elements. The black ion-plated watch has hairline and mirror finishes, with red accents across the watch’s frame and dial. The watch face is protected by a sapphire crystal, and the model is water resistant to 200 m.

The G-Shock MTG-B4000 is a radio-controlled (Multiband 6) watch with three analog hands. Bluetooth connectivity allows for auto time adjustments and also provides tools like a phone finder. The model supports 38 time zones, and has features like a timer, a stopwatch and a daily alarm. Plus, Tough Solar charging is used to extend the watch’s battery life.

Casio has yet to confirm when the G-Shock MTGB4000B-1A watch will be officially released in the US. It is also unclear when the related G-Shock MTG-B4000BD-1A watch could become available in this market.