Discover innovative form and structural beauty — MT-G timepieces that combine metal materials with the resin used in the first G-SHOCK models.
The MTG-B4000D 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.
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 analysed and simulated by AI and then further refined by the human hand to render a unique form that organically synthesises functionality and beauty.
The intricate, dimensional form of the frame is cut out from a base material of laminated carbon and glass fiber sheets, creating a beautifully layered pattern. The stainless-steel components of the bezel, featuring a dual-layer design of inner and outer bezels, are polished with separate hairline and mirror finishes for a sophisticated textural look.
The band also features a layered composite construction that integrates stainless steel and carbon fiber-reinforced resin. Combining the ruggedness of metal and lightness of resin, the band has a solid, substantial feel, while ensuring a comfortable fit.
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 moulding (MIM), a method of processing metal in which fine metal powder is injected into moulds.
Meticulous attention paid to every detail is apparent down to the sapphire crystal, which delivers high transparency. The dial incorporates delicate components featuring intricate designs achieved with fine processing technology from Yamagata Casio.
This innovative, tough style delivers full-on 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.
Case size (L× W× H)
56.6 × 45.3 × 14.4 mm
Weight
178 g
Case and bezel material
Carbon / Stainless steel
Band
Layered Composite Band
One-touch 3-fold Clasp
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 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
Glass
Sapphire crystal with anti-reflective coating
Crown
Screw Lock Crown
Compatible band size
150 to 205 mm
Other
Neobrite
World time
World time 38 time zones (27 cities + coordinated universal time), Home city time swapping, auto summer time (DST) switching
*Subject to updates by connection between the watch and a phone.
Stopwatch
1-second stopwatch
Measuring capacity: 23:59’59”
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 (Not available in New Zealand)
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
