Key Takeaways
1. Casio is accepting preorders for the MTG-B4000D-1AJF, a new metal-bracelet model in the MT-G series, priced at ¥187,000 (~$1,192), set for release in January 2026.
2. The watch features a layered design with carbon fiber-reinforced resin and stainless steel, enhancing shock absorption and protection through its dual-core guard method.
3. The hybrid bracelet combines stainless steel with reinforced resin, giving a metallic look while reducing weight and enhancing durability, with the watch weighing 178 grams.
4. Specifications include a size of 56.6 × 45.3 × 14.4 mm, 200 meters of water resistance, Tough Solar charging, Multi Band 6 radio time calibration, and Bluetooth connectivity.
5. The watch includes features like world time, a stopwatch, countdown timer, alarms, LED lighting, auto calendar, and an operational duration of about five months on a full charge.
Casio has begun accepting preorders in Japan for the MTG-B4000D-1AJF, a new metal-bracelet model in the MT-G series, which is a sequel to the recently launched MTG-B4000 series. The watch, which was recently leaked, is set to be released in January 2026 and has a price tag of ¥187,000 (~$1,192), placing it in Casio’s high-end G-Shock category.
Unique Design Features
The standout feature of the MTG-B4000D is its layered design, which incorporates carbon fiber-reinforced resin along with stainless steel. Casio refers to this as an advancement of its dual-core guard method, where the carbon framework is designed to absorb shocks while the metal casing provides overall strength and protection. Diagrams shared by Casio reveal that the frame, bezel, and caseback function as distinct structural components instead of a single cohesive unit.
Hybrid Bracelet Construction
Interestingly, the bracelet follows a similar “hybrid” concept. Although it may appear entirely metallic at first glance, Casio states that it features a layered composite design, combining stainless steel with reinforced resin parts to reduce weight and enhance durability. Despite the metallic appearance, the watch weighs in at 178 grams, making it relatively heavy.
Specifications and Features
In terms of size, the MTG-B4000D measures 56.6 × 45.3 × 14.4 mm and offers 200 meters of water resistance. It utilizes Tough Solar charging and supports Multi Band 6 radio time calibration across regions like Japan, North America, Europe, and China. It also has Bluetooth connectivity, allowing for time synchronization and setting adjustments via the Casio Watches app. Additional standard MT-G features are included, such as world time, a stopwatch, countdown timer, alarms, LED lighting, a complete auto calendar, and a battery indicator. Casio claims an operational duration of about five months on a full charge without light exposure, which can extend to nearly 18 months in a power-saving mode.
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