We've announced the top 5 most popular G-SHOCK "MT-G" watches. The MT-G, based on the concept of fusing metal and resin, utilizes Casio technologies such as the "Core Guard Structure" and "Triple G Resist" to achieve a shock-resistant structure made up of these different materials. Among these unique watches, which one was particularly popular in 2025?
Text by Tsubasa Nojima
[Article published on January 21, 2025]
Top 5 Most Popular G-SHOCK "MT-G" Watches
Casio's G-SHOCK is a milestone in the "shock-resistant watch" genre. Its shock resistance is achieved by protecting the module with a hollow structure inspired by a rubber ball. The high-end "MT-G" line, created based on the concept of fusing metal and resin, further develops this hollow structure, ensuring shock resistance with a "Core Guard Structure" in which a resin inner case containing the module is sandwiched between a bezel and case back with support pillars at the four corners.
This structure has evolved into the New Core Guard Structure, Metal Core Guard Structure, and Dual Core Guard Structure. The Dual Core Guard Structure, which is the mainstream among current models, protects the module with a carbon monocoque case and sandwiches it between metal exterior parts.
The MT-G is also characterized by its Triple G Resist, which combines shock resistance with centrifugal force resistance and vibration resistance, earning it the trust of pilots who operate in harsh environments.
This time, we will be announcing the popularity rankings for 2025 for current MT-G models. From classics that have been on the market for several years to new models created in collaboration with AI just released this year, we will be presenting the top 5 models that symbolize the depth of MT-G.
5th place: "MTG-B1000D-1AJF"
This model skillfully combines resin materials, including a carbon fiber inner case and fine resin on the inside of the strap. The case and bracelet are made of stainless steel. Tough Solar. Approximately 18 months on a full charge (in power save mode). Stainless steel and resin case (55.8mm x 51.7mm, 14.4mm thick). Water resistant to 20 bar. Price: 132,000 yen (tax included).
Coming in at number 5 is a sporty model with red accents. It features a new Core Guard structure, which incorporates a box-shaped frame connecting the bezel, case back, and lugs. This allows impacts to be absorbed by the surface rather than the axis, improving shock resistance.
The dial is an analog type with three subdials and a date display. Large indexes and hands ensure excellent visibility.
The case is made of stainless steel. A carbon fiber reinforced resin case is built into the interior, achieving both lightness and rigidity. A new structure is used to connect the strap to the case: the strap incorporates fine resin parts at its base, and is connected to a metal part and a large bolt.
The red part on the back of the strap is made of fine resin, which has low thermal conductivity, is lightweight and strong, and provides a comfortable fit.
It is equipped with a wide range of functions, including a mobile link function that connects to a smartphone via Bluetooth, a radio wave reception function, and Tough Solar.
4nd place: “MTG-B2000YBD-1AJF”
This model uses carbon fiber reinforced resin to achieve a sporty design, lightweight, and robust. The layered composite band makes the bracelet lightweight as well. Tough Solar. Approximately 29 months on a full charge (power save mode). Stainless steel and carbon case (55.1mm x 49.8mm, 15.9mm thick). 20 bar water resistance. Price: 181,500 yen (tax included).
The MT-G features an all-black exterior with a metallic red accent on a bracelet. The bezel frame is carved from 235 laminated sheets of carbon and glass fiber, allowing the black and red laminated surface to be enjoyed from the case side. This makes it approximately 77% lighter than a stainless steel bezel frame and also improves comfort. A carbon sheet is wrapped around the joint with the band to improve durability.
The stainless steel bracelet features a layered composite band with fine resin parts on the back. By using MIM (metal powder injection molding), which allows for complex shapes in the metal parts, it has a hollow structure and is lightweight. It also features a double slide lever structure that makes it easy to put on and take off the watch.
The analog dial is also highly functional, with push-button controls for dual time, stopwatch, timer, alarm, and more.
3rd place: "MTG-B3000D-1A9JF"
A slim model with gorgeous gold IP parts. It has a carbon fiber reinforced resin case with metal parts layered on top. Tough Solar. Approximately 18 months on a full charge (in power save mode). Stainless steel and carbon case (51.9mm x 50.9mm, 12.1mm thick). Water resistant to 20 bar. Price: 154,000 yen (tax included).
The MT-G boasts an elegant color scheme, featuring a silver stainless steel base with gold accents on the bezel and crown. The module is encased in a carbon fiber reinforced resin case, with stainless steel parts layered on top of it, creating an even more advanced Dual Core Guard structure. Another appealing feature of this watch is the use of a module that utilizes high-density mounting technology, allowing for a slim profile of approximately 12mm. While many G-SHOCK models are large due to the need to ensure shock resistance, this thin model is comparable to mechanical sports watches.
The watch incorporates a powerful design, including a large crown guard, easy-to-grip push buttons, and edgy bezel and lugs, while the gold color of the bezel adds a touch of elegance. The entire bezel is gold-plated, with a hairline finish applied only to the top, exposing the stainless steel. The watch also features a one-push interchangeable band structure, making it easy to change bands.
2nd place: “MTG-B2000YBD-2AJF”
It features an exterior that combines blue-gray IP with an intricately patterned carbon fiber. It uses a layered composite band that combines metal and resin. Tough Solar. Approximately 29 months on a full charge (in power save mode). Stainless steel and carbon case (55.1mm x 49.8mm, 15.9mm thick). Water resistant to 20 bar. Price: 181,500 yen (tax included).
This cool model features a two-tone black and blue-gray color scheme and a dual core guard structure that combines a carbon monocoque case to protect the module with a metal exterior.
The bezel frame is made from 235 layers of carbon fiber and blue glass fiber sheets, which are then machined. Utilizing Casio's advanced press and cutting technologies, the watch boasts a unique carbon fiber crease pattern and layered pattern visible from the side. Stainless steel parts such as the top bezel and push buttons are finished with a blue-gray IP finish.
The slightly grayish dial, combined with the angled indexes and hairline-finished hour and minute hands, gives it a high level of visibility and a calm impression. The three-dimensional design, including the in-dial ring, is also attractive.
It shares ease of use with other MT-G models, including automatic time correction via mobile link and radio wave reception, and Tough Solar, which eliminates the need for periodic battery changes.
1st place: "MTG-B4000B-1A2JF"
The MT-G was born from collaboration with AI. Tough Solar. The carbon laminated frame creates elegant lines. Approximately 18 months of battery life on a full charge (power save mode). Stainless steel and carbon case (56.6mm x 45.3mm, 14.4mm thick). Water resistant to 20 bar. Price: 176,000 yen (tax included).
Taking the top spot is a stylish model that stands out from previous MT-G models. Its design was created through collaboration with AI, based on shock-resistance data accumulated over many years. Its main features include a Dual Core Guard structure that protects the module with carbon fiber reinforced resin and sandwiches it between a stainless steel top bezel and case back, as well as a frame made of laminated carbon and glass fiber. This frame is machined to create a three-dimensional shape. The natural connection to the resin band gives this watch a smart impression.
The stainless steel parts, such as the top bezel, case back, and lugs, are finished in a blue-gray IP finish, creating a contrast with the laminated frame. The bezel combines hairline and polished finishes, and the sharp push buttons are also characteristic of high-end watches. The case back is finished in a complex shape using MIM (metal powder injection molding).
