The Casio G-Shock MT-G MTG-B4000-1AER watch is at home both in the city and in adverse conditions. It offers a wide range of functions, a modern design and high durability.
The MTG-B4000 is the first commercially available G-Shock watch designed with the help of generative artificial intelligence. The initial designs created by designers were analysed by artificial intelligence to create an optimised 3D prototype, which was then refined again by a human to achieve a unique shape that organically combines functionality and beauty.
It features a unique outer case combining steel and a composite with glass and carbon fibres, with a distinctive layered pattern, and an inner resin case also reinforced with carbon fibres. The robust steel case back is made using metal injection moulding (MIM). The first models (MTG-B4000-1A and MTG-B4000B-1A2) come with a resin strap, giving them a weight of just 112 grams. The MTG-B4000 range is manufactured at the Yamagata Casio factory in Japan and features Sallaz polishing.
The Casio G-Shock MTG B4000-1A is a model from the Master of G range, built to withstand even the toughest conditions. The case's high durability is ensured by the new Dual Core Guard construction, made from carbon fibre-reinforced resin. The outer case combines steel and composite components. This combination allows for a more compact and lighter construction.
Resistance to shocks, drops and vibrations is further enhanced by the innovative solutions and materials used in the watch's manufacture. As a result, it carries the Triple G Resist designation: it has passed tests for resistance to shocks, centrifugal force and vibrations. Specifically, it meets the ISO 2669 aviation standard for aircraft equipment and withstands centrifugal force exceeding 15G, as well as the JIS D1601 4 type A vibration standard for automotive testing, confirming its resistance to vibrations reaching 20G.
The Casio G-Shock MT-G MTG-B4000-1AER is equipped with a range of essential functions that make it a suitable tool for work, including world time and a radio-controlled, solar-powered movement. It has an analogue dial that displays the date and day of the week, and offers a stopwatch, alarm and many other functions for everyday use. These include Bluetooth, a fully automatic calendar, a countdown timer, a screw-down crown and LED dial illumination.
The watch case, which combines carbon and steel, is complemented by a highly durable resin strap. The dial is protected by a sapphire crystal with an anti-reflective coating. For easy reading in low-light conditions, the watch is equipped with luminescent hands and indices and LED illumination of the display.
The watch combines solar power and radio-controlled timekeeping with the option of a low-energy connection to a phone via Bluetooth using the CASIO WATCHES app. It also has a smart crown, which can be turned and then pressed to select functions. Its lock prevents accidental pressing. The case diameter of 45,3 mm places the watch in the large category. The model has a water resistance of 200 m, so it can be worn while swimming.
Features:
The Casio G-Shock range offers watches for anyone looking for a combination of durability, a sporty and attractive design, and a wide range of functions. All models in this globally popular range are more resistant to shocks and impacts than conventional watches. They also offer increased resistance to magnetic fields.
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| Brand | Casio |
| Gender | Male |
| Style | Sports, Smart |
| Origin | Japanese |
| Guarantee | 5 years |
| Waterproof | 200 m |
| Weight | 112 g |
| Movement | Solar |
| Caliber | 5743 |
| Movement accuracy in seconds | ± 15 s / month (without signal reception) |
Power Reserve ![]() |
5 months without access to light, 18 months in power saving mode |
Stopwatch measurement accuracy ![]() |
1/1 sec. |
| Case size | 45,3 mm |
Lug-to-lug: ![]() |
56,7 mm |
| Case height | 14,4 mm |
| Case shape | Round |
| Case material | Carbon, steel |
| Case color | Black, Silver |
| Crystal material | Sapphire - anti-reflective |
| Dial | Analog |
| Dial color | Black |
| Strap material | Resin |
Buckle ![]() |
Tang Buckle |
| Strap color | Black |
Quick release system ![]() |
no |
Alarm clock ![]() |
Yes |
| Date | Yes |
Dual time ![]() |
Yes |
| Backlight | Yes |
| GPS / Radio Controlled | Radio |
Stopwatch ![]() |
Yes |
Day of the week indicator ![]() |
Yes |
Power reserve indicator ![]() |
Yes |
| Functions | Date, Day of the week, Stopwatch, Alarm clock, Backlight, Radio controlled, Bluetooth, Automatic calendar, Dual time / GMT, Power reserve indicator, World times, Vibration resistance |
Accumulator ![]() |
Yes |
Luminescence ![]() |
Hands and indexes |
| Other functions | Countdown, World time, Automatic LED light, 12/24 mode, Automatic calendar, Bluetooth, Low battery indication, Airplane mode, Phone finder |
We guarantee the accuracy of the data. Did you find a mistake? Let us know and get 8 EUR on Watch purchase.
Guarantor: Kateřina Žváček
Jiří Štencek
+420 252 252 306
Mo-Th 9-19
Fr-Sa 9-16
info@helveti.eu
The product is included in categories
Men's watches with stopwatch Men's Japanese watch Men's silver watches Men's sports watches Men's watches with date Men’s watches Casio G-Shock Men's black watches Men's smart watches Men's solar watches Men's watches with alarm Men's watches over 400 EUR Men's radio-controlled watches Men's plastic watch Men's watches with GMT (second time zone) Men’s watches Casio MT-G MT-G Men's watches with bluetooth Men's durable watches Men's watches with steel bracelet Men's watches with sapphire crystal Men’s Watches Casio Casio
Casio, Japan is one of the best-selling watch brands in the world. The first watches from the Casia workshop were digital and at the same time the first in the world to display the date. Casio's digital watches are no longer popular today, although analog watches or watches with a combined time display already form a large part of the range.
Casio has made history with its range of super-durable G-Shock watches, which are equipped with a light but sufficiently durable construction (against falls of up to 10 m, shocks, vibrations, magnetic field and temperature fluctuations) and a great value for money. The glory of the G-Shock watch over time also required a lightweight women's version - Baby-G. The Casio Pro Trek or Casio Edifice outdoor watches are also very popular. Casio does not lag behind in modern technology either, as evidenced by models equipped with Bluetooth technology, the Tough Solar solar drive or the high-precision radio-controlled Wave Ceptor watch.
Helveti.eu is an authorized dealer and specialist of the Casio brand.
Manufacturer information: CASIO Europe GmbH, Casio-Platz 1 D-22848 Norderstedt, Germany / info@casio.de
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1 → We check, clean and set
We will check the functionality, set time, date and clean the watch carefully.
2 → We will carefully pack the watch
So that the watch does not have a chance to be damaged. We use special vacuum pads.
3 → We insure the watch against damage from the carrier
To be sure, we will insure the watch against breakage, so there is nothing to fear.
With each watch, you will receive a gift of your choice from us. Gifts are graduated according to the value of the order.
From €0 = Cleaning cloth, with which you can polish the glass of a watch.
From €100 = Stroke shortener, you can adjust the watch bracelet to your hand.
From €150 = Helveti canvas bag.
From €150 = Credit card knife.
From €170 = Donut watch case.
From €400 = Parker Jotter.
From €600 = knife Mikov 100-NH-2A blue.
From €1000 = Victorinox Waiter knife with 9 functions.
From €1400 = Watchroll for 2pcs.
From €1650 = Helveti leather watch roll.
From €2000 = Leather travel case.
From €2800 = Leatherman REV.
From €4000 = Wooden watch box Helveti.
From €6000 = Watch winder Helveti black.
And on top of that, a 5-year warranty (You can find the terms of the extended warranty here) and free shipping.
You can view the gifts here: