Casio G-Shock Mudmaster Mens Watch (Black)

4.7 4.7 out of 5 stars 523 ratings

To see product details, add this item to your cart. You can always remove it later.
No featured offers available Learn more

No featured offers available

We feature offers with an Add to Cart button when an offer meets our high standards for:

  • Quality Price,
  • Reliable delivery option, and
  • Seller who offers good customer service
“No featured offers available” means no offers currently meet all of these expectations. Select See All Buying Options to shop available offers.

Select delivery location
Added to

Sorry, there was a problem.

There was an error retrieving your Wish Lists. Please try again.

Sorry, there was a problem.

List unavailable.

Product specifications

Watch Information
Brand, Seller, or Collection Name G-Shock
Model number GWG-1000-1AJF
Part Number GWG-1000-1AJF
Model Year 2015
Item Shape Round
Display Type Analog-Digital
Clasp Buckle
Case diameter 5.6 centimeters
Case Thickness 18 millimeters
Band Material Rubber
Band width 18 millimeters
Band Color Black
Dial color Black
Special features Oversized Winding Crown
Item weight 4.2 ounces
Movement Japanese Quartz
Water resistant depth 100 Meters
Warranty If this product is sold by Amazon, please review the manufacturer’s website for warranty information. If this product is sold by another party, please contact the seller directly for warranty information for this product. You may also be able to find warranty information on the manufacturer’s website.

Looking for specific info?

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 2.34 x 2.21 x 0.71 inches; 4.2 ounces
  • Item model number ‏ : ‎ GWG-1000-1AJF
  • Department ‏ : ‎ Mens
  • Batteries ‏ : ‎ 1 LR44 batteries required.
  • Date First Available ‏ : ‎ July 31, 2015
  • Manufacturer ‏ : ‎ Casio
  • ASIN ‏ : ‎ B012FC5I4I
  • Customer Reviews:
    4.7 4.7 out of 5 stars 523 ratings

Customer reviews

4.7 out of 5 stars
4.7 out of 5
523 global ratings

Customers say

Customers like the quality, fit, performance, accuracy, and sturdiness of the watch. For example, they mention it's well designed, works well, and is comfortable. Some appreciate the solid band and the glow-in-the-dark feature. That said, most are happy with the durability and heft of the product.

AI-generated from the text of customer reviews

99 customers mention96 positive3 negative

Customers are satisfied with the quality of the watch. They mention it's well-designed, and looks sharp. Some appreciate the high-tech performance and look. The strap is of excellent quality, and the watch was built with pride and precision.

"...The face is illuminated by a double LED light and protected by a sapphire crystal to ensure high visibility under virtually any conditions..." Read more

"...The watch's dial is illuminated by a LED light and is protected by a sapphire crystal, which as per Casio cannot be scratched...." Read more

"...As other reviews have stated, the watch is of excellent build quality and is surprisingly very light, and packed full of features...." Read more

"...It actually looks spectacular, with the beige-ish color accents that Casio chose to use on the hands, the 3, 6, 9, and 12 hour markers, and the..." Read more

55 customers mention40 positive15 negative

Customers like the fit of the watch. They say that it's the right size, comfortable, and doesn't appear too huge on their wrist. Some customers also mention that the watch is a massive timepiece and one of the best looking.

"...It's big and feels huge in your wrist. I have medium size of wrist. I personally really like a big bulky - KING KONG watch...." Read more

"...It also has the newer fly back crown for easy adjustments. The sensors are the latest version for more accurate readings...." Read more

"...It is also very comfortable and doesn't appear too huge on my wrist but I have a large wrist, thinner wrists may need to test it somewhere first...." Read more

"This watch is big so if you can’t handle that stay away but if you like big watches you won’t be disappointed" Read more

41 customers mention39 positive2 negative

Customers are satisfied with the performance of the watch. They mention that the functions are fantastic, effective, and easy to use. The watch has always performed well during work and while diving. The plenty modes and uses of it are ridiculously good. It achieves multi-functionality and easy operability, and is the perfect tool for the job. The compass and barometer work okay.

"...his ground-breaking CASIO system for analogue movements achieves multi-functionality and easy operability simultaneously through a combination of..." Read more

"...This watch rich in important basic technology features that makes it the perfect companion for your outdoor trips...." Read more

"...excellent build quality and is surprisingly very light, and packed full of features...." Read more

"...It has all kind of great functionality, and should be tough as nails. Great watch!!" Read more

34 customers mention29 positive5 negative

Customers like the accuracy of the watch. For example, they say it's a great watch that keeps accurate time, it can easily adjust to the time for the area they are in, and it consistently syncs with the atomic clock. They also appreciate the compass and thermometer, which are accurate and intuitive.

"...for analogue movements achieves multi-functionality and easy operability simultaneously through a combination of multiple motors and an electronic..." Read more

"...Comes with Multiband 6, which automatically adjusts time settings based on reception of Casio's radio towers located in Japan, China, United States,..." Read more

"...The function buttons are larger and easier to push (you other owners know what I am talking about)...." Read more

"...this one has Solar charging vs. battery for GG; and this one has a triple sensor whereas GG has a double sensor: compass and temperature only, no..." Read more

27 customers mention27 positive0 negative

Customers are satisfied with the sturdiness of the watch. They mention that it is rugged, durable, and has a solid band. Some say that the watch is built like a tank and should last forever. The watch is also water resistant and has vibration-resistant construction.

"...This is CASIO's first analog watch to come with Mud Resist construction, which helps to ensure that nothing gets into the watch when down and dirty..." Read more

"...It is tough as a rock, looks awesomely amazing. Its solar-powered battery...." Read more

"...It has all kind of great functionality, and should be tough as nails. Great watch!!" Read more

"...you will notice that the watch will rest on your wrist comfortably and firmly which will make it a very unique timepiece for you.Price?!..." Read more

19 customers mention14 positive5 negative

Customers like the value of the watch. They mention it's well worth the money, a very valuable watch, and an awesome purchase. Some say that the watch is of high quality and not cheap. Overall, most are satisfied with the value and quality of the product.

"...No its not. You get a great value for all the technology; high quality materials; and the well endowed toughness pedigree of a Casio/G-Shock..." Read more

"...huge watches and its big but wears comfortable and looks sharp and not cheap as you get what you pay for and this one is worth every penny...." Read more

"...really the only thing I need to say in this review - is that it's worth the money...." Read more

"...Finally, the higher cost can be a factor and you really need to feel ok about paying a little more than the average watch cost...." Read more

16 customers mention16 positive0 negative

Customers like the comfort of the watch. They say it feels great, is wearable, and well designed. Some customers even say it has a solid feel on their arm and feels like a Glock on their wrist. Overall, customers are satisfied with the comfort and durability of the product.

"...be a bit irritating but for loyal G-Shock users like me, the watch feels like home...." Read more

"...and it is well built, you will notice that the watch will rest on your wrist comfortably and firmly which will make it a very unique timepiece for..." Read more

"The watch is comfortable, I will say that. And I love that it has the triple sensor: the compass, barometer/thermometer, and the altimeter...." Read more

"...the watch looks big, i find it much easier to read and no discomfort wearing it. The fact that its solar was another reason for purchasing it...." Read more

16 customers mention12 positive4 negative

Customers like the weight of the watch. They mention that it's very light, and packed full of features. Some customers also mention that the watch is big, bulky, and rough.

"...Now my impression of the watch. It is very light, but sturdy. It looks good on the wrist...." Read more

"...stated, the watch is of excellent build quality and is surprisingly very light, and packed full of features...." Read more

"...It is very big and quite heavy. I'm not sure how many different functions and settings it has, but he does and he is thrilled with it." Read more

"...The Mudmaster is a very large watch, but lightweight, and it conforms to the wrist very well thanks to the "wings" underneath the case...." Read more

If your on the fence about getting this watch, jump off and buy it you won't be dissapointed.
5 Stars
If your on the fence about getting this watch, jump off and buy it you won't be dissapointed.
Once the I received the watch via UPS the first thing I noticed that instead of it being packed with the bubble/air wrap around it the watch face was placed against the side of the box. Since this is a G-Shock it did stand up, but packing 101 should let Amazon know that this was a potential damage claim. However damage adverted as there was no damage.The first thing you will need to do is download the user manual (because the one that comes with it is written in Japanese). The PDF manual can be downloaded from: https://www.google.com/search?q=PDF+manuel+for+CASIO+G-SHOCK+MUDMASTER+GWG-1000-1AJF&ie=utf-8&oe=utf-8Be sure to download the 5463 as there are others that look similar, but are different.When I un-boxed the watch It had a fairly nice case with a small pillow which the watch was wrapped around. I took out the watch and it was set for Tokyo time.You will need to first check the charge of the watch to make sure you will be able to set it up. If the charge is H or M you're good to go. If the charge indicates L then you must charge it first. Mine came with a M charge so I was good to go.Some things that might help you. If you are in the USA, make sure you pick the correct time zone. You can have a main time zone and an international time zone. Make sure the main time zone is correct. Next set the DST (day light saving time) to AUTO. If AUTO isn't available, then you don't have your time zone set correctly (if you are in the USA).The watch will come with the time not set, and most likely not synced with the Atomic Clock. Don't waste your time trying to sync it, just let is sync that night (make sure auto sync is selected).Now my impression of the watch. It is very light, but sturdy. It looks good on the wrist. Some people may say that it's too big, but it's perfect for me. I'm 6'1" and 245 and it's not too big and not too little, but again that's a matter of opinion.If anyone wonders is it really made in Japan? Yes, see the pictures of the tags.The Casio review says:This new MUDMASTER model was created especially for this whose work takes it into areas where piles of rubble, dirt, and debris are present.A special vibration-resistant construction lets them stand up to wear while operating cutters, crushers, drills and other heavy machinery to clear way large obstacles. This is CASIO's first analog watch to come with Mud Resist construction, which helps to ensure that nothing gets into the watch when down and dirty work takes you deep into the dirt and sludge. Multiple gaskets are used on the pipes that guide buttons and shafts, which keeps mud out. These pipes not only act to protect buttons from impact, they also enhance button operation. The screw-in force of the screw lock bezel on an internal gasket further increases mud resistance.A new bezel structure lets you visually check whether the bezel has been screwed in adequately.In addition, Triple Sensor Version 3 capabilities provide instant access to direction, barometric pressure, and temperature information when needed under tough conditions.The face of the watch is marked with large Arabian numerals as 12, 3, 6, and 9 o'clock for easy reading. The face is illuminated by a double LED light and protected by a sapphire crystal to ensure high visibility under virtually any conditions imaginable.The band surface is processed to resemble a cloth band texture, and the hour and minute hands are shaped with points that make them resemble warning markers. All buttons have a checkered surface for surer operation, and the overall design is tough and rugged.• Vibration Resistant Structure• Digital compass, barometric pressure/altitude, temperature readings• Double LED light illuminates the face and digital display for outstanding readability.• Screw-in Crown• Multiband 6 (Automatically adjusts time settings based on reception of one of six time calibration signals around the globe: Japan (2), China, United States, England, Germany.)• Tough SolarIs it Water Resistance? – YES! The "BAR" value indicates the number of atmospheres to which water resistance is ensured. 20 BAR means water resistance to 20 atmospheres. Watches marked "200m" have the same water resistance as 20 BAR watches.Does it have Smart Access? – YES! his ground-breaking CASIO system for analogue movements achieves multi-functionality and easy operability simultaneously through a combination of multiple motors and an electronic crown.Does it have Tough Movement? – YES! TOUGH MOVEMENT is a CASIO-original thin analog movement that is packed with a host of amazing features and functions. A MULTIBAND 6 function makes it possible for the watch to receive calibration signals for Japan (two signals),
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

Reviewed in the United States on November 16, 2017
Customer image
Ken
5.0 out of 5 stars If your on the fence about getting this watch, jump off and buy it you won't be dissapointed.
Reviewed in the United States on November 16, 2017
Once the I received the watch via UPS the first thing I noticed that instead of it being packed with the bubble/air wrap around it the watch face was placed against the side of the box. Since this is a G-Shock it did stand up, but packing 101 should let Amazon know that this was a potential damage claim. However damage adverted as there was no damage.

The first thing you will need to do is download the user manual (because the one that comes with it is written in Japanese). The PDF manual can be downloaded from: https://www.google.com/search?q=PDF+manuel+for+CASIO+G-SHOCK+MUDMASTER+GWG-1000-1AJF&ie=utf-8&oe=utf-8
Be sure to download the 5463 as there are others that look similar, but are different.

When I un-boxed the watch It had a fairly nice case with a small pillow which the watch was wrapped around. I took out the watch and it was set for Tokyo time.

You will need to first check the charge of the watch to make sure you will be able to set it up. If the charge is H or M you're good to go. If the charge indicates L then you must charge it first. Mine came with a M charge so I was good to go.

Some things that might help you. If you are in the USA, make sure you pick the correct time zone. You can have a main time zone and an international time zone. Make sure the main time zone is correct. Next set the DST (day light saving time) to AUTO. If AUTO isn't available, then you don't have your time zone set correctly (if you are in the USA).

The watch will come with the time not set, and most likely not synced with the Atomic Clock. Don't waste your time trying to sync it, just let is sync that night (make sure auto sync is selected).

Now my impression of the watch. It is very light, but sturdy. It looks good on the wrist. Some people may say that it's too big, but it's perfect for me. I'm 6'1" and 245 and it's not too big and not too little, but again that's a matter of opinion.

If anyone wonders is it really made in Japan? Yes, see the pictures of the tags.

The Casio review says:

This new MUDMASTER model was created especially for this whose work takes it into areas where piles of rubble, dirt, and debris are present.

A special vibration-resistant construction lets them stand up to wear while operating cutters, crushers, drills and other heavy machinery to clear way large obstacles. This is CASIO's first analog watch to come with Mud Resist construction, which helps to ensure that nothing gets into the watch when down and dirty work takes you deep into the dirt and sludge. Multiple gaskets are used on the pipes that guide buttons and shafts, which keeps mud out. These pipes not only act to protect buttons from impact, they also enhance button operation. The screw-in force of the screw lock bezel on an internal gasket further increases mud resistance.

A new bezel structure lets you visually check whether the bezel has been screwed in adequately.
In addition, Triple Sensor Version 3 capabilities provide instant access to direction, barometric pressure, and temperature information when needed under tough conditions.

The face of the watch is marked with large Arabian numerals as 12, 3, 6, and 9 o'clock for easy reading. The face is illuminated by a double LED light and protected by a sapphire crystal to ensure high visibility under virtually any conditions imaginable.

The band surface is processed to resemble a cloth band texture, and the hour and minute hands are shaped with points that make them resemble warning markers. All buttons have a checkered surface for surer operation, and the overall design is tough and rugged.

• Vibration Resistant Structure
• Digital compass, barometric pressure/altitude, temperature readings
• Double LED light illuminates the face and digital display for outstanding readability.
• Screw-in Crown
• Multiband 6 (Automatically adjusts time settings based on reception of one of six time calibration signals around the globe: Japan (2), China, United States, England, Germany.)
• Tough Solar

Is it Water Resistance? – YES! The "BAR" value indicates the number of atmospheres to which water resistance is ensured. 20 BAR means water resistance to 20 atmospheres. Watches marked "200m" have the same water resistance as 20 BAR watches.

Does it have Smart Access? – YES! his ground-breaking CASIO system for analogue movements achieves multi-functionality and easy operability simultaneously through a combination of multiple motors and an electronic crown.

Does it have Tough Movement? – YES! TOUGH MOVEMENT is a CASIO-original thin analog movement that is packed with a host of amazing features and functions. A MULTIBAND 6 function makes it possible for the watch to receive calibration signals for Japan (two signals),
Images in this review
Customer image Customer image Customer image Customer image Customer image Customer image Customer image
Customer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer image
46 people found this helpful
Report
Reviewed in the United States on October 27, 2019
Customer image
5.0 out of 5 stars . : THE BEAUTY and THE BEAST : .
Reviewed in the United States on October 27, 2019
I have three G-Shock watches on my collection. By far this Casio G-Shock Mudmaster GWG-1000-1AJF Japan Direct Market is the BEAUTY and the BEAST of rugged Casio smartwatches. It is tough as a rock, looks awesomely amazing. Its solar-powered battery. You don't need to worry about carrying a charger as exposing the watch to the sun keeps the battery going. This watch rich in important basic technology features that makes it the perfect companion for your outdoor trips. The watch's dial is illuminated by a LED light and is protected by a sapphire crystal, which as per Casio cannot be scratched. It also ensures high visibility under virtually any conditions imaginable. Comes with Multiband 6, which automatically adjusts time settings based on reception of Casio's radio towers located in Japan, China, United States, England, and Germany. So you don't need to get into the hustle of setting the time manually.

It's big and feels huge in your wrist. I have medium size of wrist. I personally really like a big bulky - KING KONG watch. If you are buying a G-Shock for the first time, the big dial can be a bit irritating but for loyal G-Shock users like me, the watch feels like home. Equipped with triple sensor mechanism including Digital compass, Barometric pressure/Altitude and Temperature readings. It provides instant access to direction you are heading, barometric pressure, and temperature readings of the current environment around you. However, since it is not a smartwatch, it does not have a touch screen, Bluetooth, GPS and other sensors like heart rate, steps counter, sleep monitor, etc. that are a common affair these days on fitness trackers and smartwatches.

If you've been wanting and drooling to buy a serious tough watch, don't feel hesitate to get this masterpiece. I can assure you that you won't regret it. Thank you Last Samurai for fast shipping and real JDM watch. 5 stars for both product and seller!
Images in this review
Customer image Customer image Customer image Customer image
Customer imageCustomer imageCustomer imageCustomer image
12 people found this helpful
Report

Top reviews from other countries

Translate all reviews to English
Amazon Customer
5.0 out of 5 stars Nice 👍 watch
Reviewed in Canada on September 12, 2019
Customer image
Amazon Customer
5.0 out of 5 stars Nice 👍 watch
Reviewed in Canada on September 12, 2019
Thanks 🙏 four fast 💨 shopping 🛍
Thanks 🙏 for nice 👍 watch I love ❤️ it’s soo much I recommend to everyone and faster what’s I thought
Thanks 🙏 again
Images in this review
Customer image Customer image Customer image
Customer imageCustomer imageCustomer image
3 people found this helpful
Report
林文一
5.0 out of 5 stars カッコいい
Reviewed in Japan on December 17, 2022
One person found this helpful
Report
Robert burnaccioni
5.0 out of 5 stars Great watch! Amazing buy
Reviewed in Canada on January 25, 2018
Customer image
Robert burnaccioni
5.0 out of 5 stars Great watch! Amazing buy
Reviewed in Canada on January 25, 2018
Love the watch! Was actually blown away by the quality. It's a pretty big watch but fits and looks amazing. Shipping was very slow almost a month without any tracking but it finally arrived. This is the model with the black strap like I wanted.
Images in this review
Customer image
Customer image
2 people found this helpful
Report
MAX
5.0 out of 5 stars 念願の陸G
Reviewed in Japan on September 25, 2021
mamingcen
5.0 out of 5 stars Good
Reviewed in Canada on February 12, 2021
One person found this helpful
Report