The heart of the timepiece is a precise quartz movement. The watch case is made from extremely light and durable carbon fibers in black.The green strap is made of silicone - the material which is characterised by lightness and high level of damage resistance. It perfectly goes with the watch case. A mineral crystal protects the black dial against shocks and scratches. A water resistance of 20ATM makes the watch suitable for swimming in the pool and diving at greater depths. Casio G-SHOCK GG-B100-1A3ER is an authentic watch that you can purchase in our authorised store. The model is packed in a branded box and comes with a manufacturer's warranty.
Functions
5 daily alarms
The daily alarm reminds you about recurring events with an acoustic signal at the time you have set. This model has 5 independent alarms for flexible reminders of important appointments.
Button tones on/off
The button tones for using the mode button can be turned off. This means that the watch no longer beeps when switching from one function to another. Preset alarm or countdown timers remain active when the button tones are deactivated.
Hand Moving Function
With a push of a button, hands are moving and permit a free visibility of functions like stopwatch or date.
Phone Finder
Misplaced your smartphone? All it takes is the push of a button on your watch and the smartphone sounds an alarm.
Automatic calendar with Date, Day and Month
Once set, the automatic calendar always displays the correct date.
12/24-hour timekeeping
Times can be displayed in either a 12-hour or 24-hour format.
Mineral glass
The tough mineral glass resists damages.
Carbon-reinforced resin casing
Thanks to its extremely high level of durability, resin is the ideal material for watches. Combining resin with carbon—a particularly robust material—creates a casing that is even more stress-resistant and offers even greater protection against external influences, resulting in an extremely high level of durability.
Resin band
Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties.
Folding clasp
The watch has a folding clasp.
Battery change indicator
An icon appears when it is time to change the battery.
2 Years - 1 Battery
The battery supplies the watch with sufficient energy for approx. two years.
Water resistance classification (20 bar)
Perfect for free diving without scuba gear: the watch is water resistant up to 20 bar according to ISO 22810.
Bluetooth® Smart
The watch is equipped with energy-saving Bluetooth® technology, which offers power-saving data transfer at the push of a button. The watch can connect to a smartphone wirelessly via Bluetooth®, enabling access to a wide range of useful functions.
Dual Illuminator
Both the digital and analogue areas of the watch face glow when the EL backlight is turned on.
Shock-resistant
Shock-resistant construction protects against impact and vibration.
Mud-resistant case
Dirt- and mud-resistant construction keeps mud and dirt from getting into the watch.
Neo-display
A luminous coating provides long-term illumination in the dark after only a short exposure to light.
Barometer (260 / 1.100 hPa)
A special sensor measures the air pressure (measuring range: 260/1100 hPa) and presents this on the display in the form of a symbol. This enables early detection of weather trends.
Thermometer (-10°C / +60°C)
A sensor measures the ambient temperature around the watch and displays it in °C (-10°C /+60°C).
Digital-compass
A built-in direction sensor detecs the magnetic north.
10 000 m altimeter
A pressure sensor detects changes in the air pressure and converts the result into an altitude up to 10 000 m.
Height Gain
The height gain sums all the meters you have climbed in a session, so that you can see at a glance the total ascent on a tour.
Altimeter data memory
Depending on the model, up to 40 sets of elevation data can be stored in the watch's data memory and re-accessed at any time. Each of these data sets consists of a measured altitude as well as the date and time. In addition to the individual altitudes, the maximum and minimum altitudes during a measurement are also stored.
Sunrise/sunset display
After entering the geographical location, sunrise and sunset times can be displayed for any given date.
World time function
Displays the current time in major cities and specific areas around the world.
Stopwatch function - 1/100 sec. - 24 hours
Accuracy of measurement up to 1/100 of a second, measuring range up to 24 hours.
Timer - 1/1 min. - 24 hours
For fans of precision: the countdown timers help you to remember specific or recurring events by giving off an audible signal at a preset time. The time can be set to the nearest seconds and up to 24 hours in advance. This model has three independent timers - ideal for people who need to take medicines every day or those who do interval training.
What’s in the box?
3-year warranty
User manual
Warranty card
Casio box
Reviews about G-SHOCK Master of G Mudmaster Carbon Core Guard Quad Sensor Bluetooth Sync GG-B100-1A3ER (29)
I bought this watch as a 30th birthday gift. It has a mineral crystal face, which makes it a great gift idea. I received a quick response via email. I'm happy with it.
Leva
12/24/25
100%
I received a G-SHOCK watch as a gift and I’m very happy with it. This model draws on the well-known history of the Casio brand, which has long been recognized for its durability. The black plastic strap is sturdy and comfortable. The product meets my expectations in terms of quality and appearance. The watch is practical for everyday use and looks great on the wrist. I highly recommend this purchase.
Tomek SNU.
6/29/24
100%
The perfect watch
It’s lightweight, comfortable, and has lots of useful features. It looks great on the wrist. I think the price is fair for the quality. I recommend it.
Tomg1984
1/25/24
100%
A sturdy watch that can handle all my demanding hobbies. Even after a day spent in the field, it still works flawlessly. It probably comes as no surprise that this isn’t my first G-Shock, but I have no intention of curing this addiction! It’s the perfect watch for men with high standards.
Robert
11/5/23
100%
A great watch for outdoor adventures. I bought it a few weeks ago. It works great, looks indestructible, and so far, it has been. It’s very solidly built, using high-quality materials.
I recommend it.
Archi9
6/25/22
100%
Great watch—everything works as it should. Super comfortable.
Damian
11/24/21
100%
I highly recommend it—it's a great watch.
Dima
1/5/21
100%
Despite its size, it sits just as comfortably and securely on a small wrist as the tiny GW-B5600. At first, the lack of a power source seemed like an insurmountable drawback....but replacing the battery for a few zlotys once every two years isn’t a nightmare given the number of features it has. Combined with the app, we gain the ability to customize the menu—a huge plus for me. You can reduce unnecessary clicking and place the most frequently used functions right at the top. The user interface is actually very well thought out—which isn’t always a given with G-Shocks. I was worried the display would be hard to read, but it works just fine. The brightness is pretty good—it keeps the hands visible all night long. Very good backlight. The pedometer, location indicator, automatic altimeter correction, and mission log will definitely come in handy on vacation. Casio has very thoughtfully packed as many features as possible into a limited budget. First-class build quality. It’s great that there are finally no dummy screws—each one serves a real function. The buttons are comfortable and large. You can feel the quality of the materials it’s made from just by touching it. Despite the design being balanced for the Mudmaster series, you can tell this is a true Master of G. I highly recommend it!
Adam
1/5/21
100%
However, it lies on a small wrist as comfortably and securely as the tiny GW-B5600 cube. At first, the lack of power seemed to be an unbearable defect ... but replacing the battery for a few zlotys every two years is not a nightmare with the number of functions it has. In conjunction with the application, we gain the possibility of personalizing the menu - a very big plus for me. Reduce unnecessary clicking and give the most-used functions to the very beginning. After all, the operating logic is very well thought out - this is not always obvious in G-Shock. I was afraid that the display would be unreadable, but it works fine. Pretty good luma - it maintains acceptable visibility all night on the tips. Very good backlight. Pedometer, location indicator, automatic altimeter correction or mission log will certainly be useful on vacation. Casio has thoughtfully packed as many functions as possible into a limited budget. First class performance. It's nice that there are no dummy screws - each has its actual function. Comfortable and large buttons. You can feel the decent materials from which it was made. Despite the balanced style for the Mudmaster series, it can be seen that it is a real Master of G. I recommend it!
Adam
7/1/20
100%
Awesome watch :)
It looks great on your wrist :)
zbyszek
7/1/20
100%
Great watch :) It looks great on your hand :)
zbyszek
4/23/20
100%
I have both the classic G-SHOCK GA-100 and the G-STELL GST-210D, so I decided to buy another model, sticking to practicality and great design, I chose the Mudmaster. It's nice, MEGA LIFESTYLY, without limits, practical, very well made, with great details on both the case and dial - pure precision and quality as befits a G. Why did I choose this model? It looks great and has many cool functions, from barometer to temperature measurement and compass. A great series and, most importantly, for the years to come, the watch will be hard to destroy, so the way it looks today, it will look like that in the future. Despite the strong digitization and the possibilities, "Zegownia" is a really strong competitor on the market, where I bought another and not the last watch :)
Marcin
4/23/20
100%
I own both the classic G-SHOCK GA-100 and the G-STELL GST-210D, so I decided to buy another model. Looking for something practical with a great design, I settled on the Mudmaster. It’s pretty cool—MEGA LIFESTYLE, no limits, practical, very well-made, with great details on both the case and the dial—pure precision and quality, just as you’d expect from a G-SHOCK. Why did I choose this model? It looks great and has many cool features, from a barometer to a thermometer and a compass. It’s a great series, and most importantly, the watch will be hard to damage over the years, so it’ll look just as good in the future as it does today. Despite the strong digital trend, "Zegarownia" is a truly formidable competitor in the market—that’s where I bought my next (and certainly not my last) watch :)
Marcin
4/3/20
100%
It's a bit of a beast, but it works like a charm. It's so handy—great for checking pressure and temperature, and if necessary, you could almost use it to fend off an attacker in a dark alley, hehe. Just kidding. I highly recommend it—it's a great product!
Jacek
4/3/20
100%
A huge bull, but it works brilliantly. Such a tactical one, it will be useful for checking the pressure, temperature, and if necessary, you can almost kill it when someone attacks us in a dark alley, hehe. A little joke. I recommend it, it's good!
Jacek
1/28/20
100%
But a G-Shock is a G-Shock. These watches have never let me down. I decided to buy another one in green, and now it’s my favorite. It’s great—I highly recommend it.
Czarek
1/28/20
100%
However, G-Shock is G-Shock. These watches have never let me down. I decided to buy myself another green one and now it is my favorite. It is great, I recommend it
Czarek
11/25/19
100%
This is it. A watch with real character. Its many extra features are a definite plus. This model goes perfectly with my military uniform. Durability—top-notch.
MR
11/25/19
100%
This is it. A watch with real character. A lot of additional functions is its definite plus. The model fits perfectly with my military uniform. Durability - first class.
MR
11/21/19
100%
An excellent model with an interesting, unique design. Not only does the watch look great, but it’s also incredibly functional. Plus, it’s equipped with a host of security features.
Filip
11/21/19
100%
An excellent model, with an interesting, unusual appearance. The watch not only looks nice, but is also very functional. In addition, the model is equipped with a lot of security systems.
Filip
11/20/19
100%
This watch is really great—finally something new. First of all, it has a super original design; the green strap looks awesome. Second, the functionality—I can say that the Bluetooth feature is truly reliable. I’m very happy with my purchase; I wouldn’t trade it for any other model.
Krystianek
11/20/19
100%
This watch is really great, finally something new. First of all, a mega original look, the green stripe looks extra. Secondly, the functionality, here I can say that the bluetooth function is really reliable. I am very pleased with the purchase, I would not exchange it for any other model.
Krystianek
11/20/19
100%
This is a really great model. The watch looks fantastic thanks to its unique design. In my opinion, its functionality is its biggest selling point. I won’t list all its features here—see for yourselves. I often end up damaging my watches. I feel really confident about this model—interestingly, it’s even mud-resistant. A watch like this is a really good investment.
Seweryn
11/20/19
100%
This is a really great model. The watch looks great due to its original appearance. In my opinion, the functionality of this watch is its definite advantage. I will not list all its functions here, see for yourself. I often damage my watch. I am really calm about this model, interestingly, it is even mud resistant. A watch like this is a really good investment.
Seweryn
10/29/19
100%
Oh, and here's a green one. This one is even prettier than the orange one. I wonder how Bluetooth connectivity works, but I'm sure the manual explains how to set it up.
Kamil x2 :)
10/29/19
100%
Oh, here's green. This one is even prettier than the orange one. I wonder what bluetooth communication looks like, but how to set it up is probably in the manual.
Kamil x2 :)
8/2/19
100%
When I was at the store in Panorama, a delivery person arrived right in front of me with this model—as soon as I saw it, I decided against buying another G-SHOCK—now I have this gem on my wrist and I’m thrilled!
Porter
8/2/19
100%
When I was in the store in Panorama, a courier came with me to deliver this model to the store - when I saw it, I gave up another G-SHOCK - now I have this miracle on my hand and I am delighted!
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The administrator of your personal data is the owner of the Watchard store, i.e. 57 Concepts Sp. z o.o. Sp. k. with the registered office at al. Witosa 31, lok. 115, 00-710 Warsaw, Poland. Providing personal data by the Customer is voluntary but necessary to complete the purchase. You have the right to view your personal data we have processed, as well as the right to request changes or removal of your personal data. Personal data will be processed for a period of 10 years.
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