Casio is getting ready to expand its premium G-Shock MTG lineup again, with two new models reportedly arriving soon: the MTG-B4000BD-1A and the MTG-B4000B-1A. These upcoming watches will join the MTG-B4000 Series, which already includes earlier releases such as the MTG-B4000D-1A that debuted in early 2026.
Recent leaked images suggest both new MTG-B4000 variants lean into a stealthy, mostly black design—while still offering distinct styling differences. The Casio G-Shock MTG-B4000BD-1A appears to go fully monochrome with an all-black look and a layered composite band that adds visual depth and a more premium, technical feel. Meanwhile, the MTG-B4000B-1A keeps the darker theme but adds sharp red accents across the dial and case area for a sportier, more aggressive contrast. This version is also expected to use a resin bracelet instead of the composite band, which should help bring the price down.
Beyond the colorways and band materials, both watches are expected to share the same high-end construction and protective architecture. That includes Casio’s newer Dual Core Guard structure featuring a carbon frame, paired with a stainless steel case and a sapphire crystal for added scratch resistance—exactly the kind of build MTG buyers look for when they want something more luxurious than standard resin G-Shocks, without giving up toughness.
Functionality looks set to remain a major selling point. The MTG-B4000 is expected to be radio-controlled for accurate timekeeping, and it also includes Bluetooth connectivity for smartphone linking. That typically enables features like automatic time adjustments and other app-based tools. On the dial, you can expect a classic analog layout with three hands plus multiple subdials, designed to keep key functions readable while maintaining the MTG’s rugged, premium style.
In terms of features, the MTG-B4000 platform is known to support world time, a 1-second stopwatch, a countdown timer, and a daily alarm. It also carries Triple G Resist protection, meaning it’s built to withstand shock, vibration, and centrifugal force—an appealing spec for anyone who wants a luxury-grade tough watch that can handle real punishment. Rounding things out are an LED backlight for visibility in low light, 200-meter water resistance for swimming and water sports, and Tough Solar charging to extend battery life and reduce the need for replacements.
Pricing rumors point to the MTG-B4000BD-1A as the more expensive option, expected to retail at ¥203,500 (around $1,276), likely due to its composite band. The resin-band MTG-B4000B-1A is tipped to come in lower at ¥176,000 (around $1,104).
As for availability, the latest expectations suggest a Japan launch in May 2026. There’s no firm word yet on whether these models will release internationally or when they might arrive in markets like the United States. For now, fans of the MTG-B4000 Series may want to keep an eye on official announcements as the rumored launch window approaches.
