MTGB4000BD-1A

Discover innovative form and structural beauty — MT-G timepieces that combine metal materials with the resin used in the first G-SHOCK models. Now, in the powerful form and refined elegance of carbon fiber and metal in black. The MTG-B4000 features an updated Dual Core Guard structure with a frame design integrating carbon fiber and stainless steel, which was developed with the aid of artificial intelligence trained with big data on impact resistance. The result is an innovative design that delivers both strength and beauty. A seamless collaboration between AI capabilities and human developers, this timepiece creatively integrates materials, structure, and design into an organic whole of functional beauty. Base designs created by human designers were analyzed and simulated by AI and then reevaluated and further refined by the human hand to render a unique form that organically synthesizes functionality and beauty. The intricate, dimensional form of the frame is created from a base material of laminated carbon and glass fiber sheets, revealing a beautifully layered pattern. The bezel features a dual-layer design of inner and outer bezels, with stainless-steel components polished with separate hairline and mirror finishes, then ion-plated in black for a sophisticated textural look. The watch employs the Triple G Resist structure to withstand shock, centrifugal force, and vibration. The case is also protected by the dimensional form of the case back, which is created using metal injection molding (MIM), a method of processing metal in which fine metal powder is injected into molds. The MTG-B4000BD-1A features a layered-composite band made of stainless steel and carbon fiber-reinforced resin, offering both the durability of metal and the lightness of resin. With a solid and substantial look, this band also delivers an outstanding, comfortable fit. Beyond employing the sapphire crystal for high transparency, meticulous attention to detail is apparent throughout, including the delicate components of the intricate dial design, achieved with fine processing technology from Yamagata Casio. This innovative, tough style delivers full-on practical functionality, as well. Download the CASIO WATCHES app to pair with your smartphone via Bluetooth®. With Multiband 6, Tough Solar charging system, and high-brightness LED light, these timepieces keep you at peak performance, whatever your adventures may bring. Basic Information Case size (L× W× H) 56.6 × 45.3 × 14.4 mm Weight 112 g Case and bezel material Carbon / Stainless steel Band Resin Band Construction TRIPLE G RESIST (Shock resistant, Centrifugal force resistant, Vibration resistant) Carbon Core Guard structure Water resistance 200-meter water resistance Time adjustment Bluetooth: Connects to a smartphone and automatically adjusts the time Radio-controlled Watch; Multi band 6 Power supply and battery life Tough Solar (Solar powered) Smartphone Link/App Connectivity Features Smartphone Link feature Mobile link (Automatic connection, wireless linking using Bluetooth®) Apps CASIO WATCHES App connectivity feature Auto time adjustment Easy watch setting Approximately 300 world time cities Watch status display Self check Phone finder Exterior Glass Sapphire crystal with anti-reflective coating Spherical Glass Crown Screw Lock Crown Compatible band size 145 to 215 mm Other Neobrite Watch Features World time Dual time 27 time zones, Home city time swapping, auto summer time (DST) switching Stopwatch 1-second stopwatch Measuring capacity: 23:59'59'' Measuring modes: Elapsed time Timer Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments) Alarm/hourly time signal Daily alarm Light LED light (Super Illuminator) Afterglow Light colour LED:White Calendar Full auto-calendar (to year 2099) Hand home position correction feature The auto hand home position correction Energy saving feature Power Saving (hands stop to save power when the watch is left in the dark) Run time Approx. battery operating time: 5 months on rechargeable battery (operation period with normal use without exposure to light after charge) 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) Accuracy Accuracy: ±15 seconds per month (with no signal calibration and mobile link function) Other features Hand shift feature (Hands move out of the way to provide an unobstructed view of indial) Regular timekeeping: Analog: 3 hands (hour, minute (hand moves every 5 seconds), second), 3 dials (dual time hour and minute, dual time 24 hour, day) Date display Day indicator Time adjustment details Time Calibration Signals Station name: DCF77 (Mainflingen, Germany) Frequency: 77.5 kHz Station name: MSF (Anthorn, England) Frequency: 60.0 kHz Station name: WWVB (Fort Collins, United States) Frequency: 60.0 kHz Station name: JJY (Fukushima, Fukuoka/Saga, Japan) Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga) Station name: BPC (Shangqiu City, Henan Province, China) Frequency: 68.5 kHz Time calibration signal reception Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful) *5 times a day for the Chinese calibration signal Manual receive The latest signal reception results