The MTG-B4000B: Where Structural Beauty Meets Advanced Innovation
The MT-G series continues to push the boundaries of watchmaking by seamlessly integrating premium materials such as stainless steel, carbon fiber, and resin. The MTG-B4000B embodies this evolution, showcasing exceptional structural beauty through a groundbreaking frame construction developed in collaboration with AI technology.
A newly engineered layered-composite band further enhances the watch’s distinctive character. Combining the strength of stainless steel with lightweight carbon fiber-reinforced resin, the innovative design delivers a bold and sophisticated presence while staying true to the MT-G philosophy of harmonizing diverse materials to achieve both durability and refined aesthetics.
Multiple functions, all at your fingertips
CASIO WATCHES
(Smartphone app)
- Automatic time adjustment (fout time a day)
- Easy watch setting
- World time (about 300 cities)
- Watch status display: Graphical display of time-reception status, solar power generation status, internal data update history and more.
- Self-check: Automatic evaluation of watch functions’ operational status. Displays a screen alert in the case of malfunction.
- Time & place: Pressing a button on the watch records the date, time and position on a map within the app. Useful as an activity log.
- Phone finder
Watch Functions
- Shock-resistant structure
- Centrifugal gravity resistance
- Vibration-resistant structure
- 20 bar water resistance
- Solar-powered
- Smartphone Link
- Radio-controlled (Multiband 6)
- Auto hand home position correction
- World time (27 cities)
- Stopwatch
- Countdown timer
- Alarm
- LED light (Super Illuminator)
- Date and day display
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. Any use of such marks and logos by Casio Computer Co., Ltd. is under license.
Features:
An All-New Multi-Material Frame Designed with AI Collaboration
The MTG-B4000B introduces a revolutionary frame construction born from a collaborative process between human designers and AI. This innovative approach has resulted in a striking new architecture that seamlessly integrates multiple materials, further enhancing the MT-G line's signature toughness and sophisticated design language.
Working in harmony with G-SHOCK's Dual Core Guard structure, the newly engineered frame incorporates the band connection components directly into the case, helping to minimize shock transmission. A hybrid construction combining carbon fiber and stainless steel delivers an ideal balance of lightweight strength and durability. Additionally, a screwless assembly securely bonds the stainless-steel lug components to the carbon frame, providing superior impact resistance while maintaining a clean, refined aesthetic.
AI-Assisted Development: Engineering the Future of Toughness
The MTG-B4000B marks a new chapter in G-SHOCK innovation through an AI-assisted development process. Human designers established the initial design concepts, while AI leveraged decades of G-SHOCK expertise in shock-resistant construction to analyze, simulate, and optimize structural performance.
By evaluating strength requirements, material characteristics, and impact resistance, AI generated highly refined 3D prototypes that pushed the boundaries of conventional design. These concepts were then meticulously reviewed and enhanced by designers through repeated refinements, resulting in a distinctive form that harmoniously blends advanced functionality, exceptional durability, and striking structural beauty.
Multi-layered carbon frame: Layers of toughness interwoven with beauty
The frame is cut out from a base material consisting of laminated carbon and glass fiber sheets to create its innovative dimensional form. The beautiful layered patterns created by the cut across the different materials feature prominently when the watch is viewed from the side. A molded combination of carbon fiber and resin is employed for the top surface, revealing a distinctive fibrous pattern that gives a vivid sense of the materials’ toughness.
In addition, the frame is configured to interlock with the bezel, side buttons, and case back, creating a beautiful exterior that highlights the combination of carbon fiber, resin, and stainless-steel materials.
* The exact patterns that appear on surfaces will vary with each timepiece due to the characteristics of the molding technique, which mixes carbon fibers, resin, and other materials.
Layered-Composite Band: Redefining Structural Beauty
Exclusively developed for the MT-G line, the innovative layered-composite band showcases G-SHOCK's mastery of material integration. Crafted from stainless steel and carbon fiber-reinforced resin, the band combines strength, lightweight comfort, and striking visual appeal.
The raised center links feature individually finished surfaces that enhance the depth and sophistication of the design, while the distinctive carbon fiber pattern along the sides creates a bold, seamless flow from the frame and lugs through to the band. This cohesive construction embodies the MT-G philosophy of harmonizing contrasting materials to achieve exceptional durability and refined aesthetics.
The inherent rigidity and lustre of stainless steel lend the watch a powerful, solid presence, while low thermal conductivity materials are used on the underside of the band to ensure a comfortable fit against the skin, making the MTG-B4000B ideal for everyday wear.
Due to the unique molding process that blends carbon fibers, resin, and other materials, the surface pattern of each timepiece is distinct, ensuring that every MTG-B4000B possesses its own individual character.
Meticulous finishes for a look of solidity and radiance
Multiple unique finishes are applied to individual parts to set off the texture of the stainless steel most impressively. In particular, separate hairline and mirror finishes are applied to the bezel, case, and band — components with sharp-edged surface structures. This accentuates the structural beauty created by their complex forms, as well as the gleam of the metal. The watch exterior exudes a powerful and beautiful sense of presence viewed from any angle. Also, Sallaz polishing is employed for certain sections of the mirror finishes to create beautiful, exceptionally smooth surfaces free of distortion.
Metal injection molding (MIM), a method of metal processing in which fine metal powder is injected into molds, is used to create the intricate dimensional case back. Laser processing is used to create a delicately textured matte finish, resembling the texture of Asian pear skin, on recessed portions to offset the TRIPLE G RESIST logo.
Dial design with sharpness and depth exudes intricacy
The design, incorporating three-dimensional arrangements of components, including a slanted dial ring set off with large, boldly raised indexes, gives the dial an impressive sense of depth. Phosphorescent finish and metallic vapor deposition are applied to the sharp, multifaceted forms of the indexes. Achieved with the fine processing technologies of Yamagata Casio, the intricate forms of the components accent the watch with sophisticated textural appeal down to the finest details.
Details:
Triple G Resist
The updated MT-G Dual Core Guard structure protects the carbon fiber-reinforced resin inner case with metal components, delivering high strength and weight reduction at the same time. The innovative construction meets stringent G-SHOCK standards, providing protection from shock, centrifugal force, and vibration with Triple G Resist technology.
Solar-powered timekeeping with radio control and Bluetooth® connectivity
Smartphone Link and standard time radio wave reception deliver automatic time adjustment. The solar-charging system reliably powers all functions.
Super Illuminator
High-brightness LED light improves watch readability in the dark.
Sapphire crystal
An anti-reflective coating is applied to the scratch-resistant, highly transparent sapphire crystal to ensure clear visibility.
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