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Casio G-Shock MUDMASTER GG1000-1A5 Twin Sensor Watch Mud Resistant Shock Resistant 200M Water Resistant Compass Thermometer

Based on 1,435 reviews
Condition: New
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$256.05
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Availability: Only 5 left in stock, order soon!
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Arrives Nov 5 – Nov 10
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At a glance

Condition
New
Color
Tan
Model
GG-1000-1A5
Dimensions
1 x 1 x 1 in; 3.2 oz
Weight
3.2 oz
Batteries
1 CR2 batteries required. (included)
Display
Analog-Digital
In the box
Wristwatches

Description

The Casio G-SHOCK MUDMASTER GG1000-1A5 is engineered for demanding environments where mud, dirt, debris, and impacts are part of the challenge. Part of the Master of G Land collection, this rugged analog-digital watch combines G-SHOCK toughness with Twin Sensor technology and a military-inspired design. Mud-resistant and shock-resistant construction helps protect the watch in harsh conditions, while its specialized button guard structure is designed to help prevent mud and fine debris from interfering with operation. Large Arabic numerals, broad hands, and Neobrite details provide excellent at-a- glance readability. Twin Sensor technology gives you quick access to a digital compass and thermometer. The compass measures direction from 0° to 359° and displays 16 directional points, while the thermometer measures temperatures from 14°F to 140°F (-10°C to 60°C). Dedicated oversized buttons provide intuitive access to these outdoor functions. The GG1000-1A5 also delivers 200-meter water resistance, world time across 31 time zones and 48 cities, a 1/100-second stopwatch, countdown timer, five daily alarms, and a Super Illuminator LED backlight with auto light functionality. With its rugged resin and stainless steel construction, textured resin band, and approximately two- year battery life, this MUDMASTER is built for serious outdoor use. ​CasioWith the launch of its first watch in November 1974, Casio entered the wristwatch market at a time when the watch industry had just discovered digital technology. As a company with cutting-edge electronic technology developed for pocket calculators, Casio entered this field confident that it could develop timepieces that would lead the market.Today, Casio is focusing its efforts on solar-powered radio-controlled watches: the built-in solar battery eliminates the nuisance of replacing batteries, atomic timekeeping means the users never have to reset the time. Recently, Casio launched a series of Bluetooth watches that sync to the users cell phone to automatically update the time. Casio is always moving time forward. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); This is the latest addition to the MASTER OF G MUDMASTER Series. Built to prevent intrusion by sand, mud or dust and to ensure reliable operation in the harshest environments, this tough structure is prepared to support training and actual missions in environments such as jungles and deserts. It's an ideal tool for rangers and rescue crews. Mud Resist construction 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. See more

Specs 47

Product Dimensions 1 x 1 x 1 inches; 3.2 ounces
Item model number GG-1000-1A5
Department unisex-adult
Batteries 1 CR2 batteries required. (included)
Manufacturer Casio
Product Warranty For warranty information about this product, please click here
Display Analog-Digital
Watch Movement Type Quartz

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 5 – Nov 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


Great watch
Great watch built tough i love this watch
Reviewed in the United States on August 25, 2026 by cliff hutnick

Watch perfect; seller not so much…
Received my new Mudmaster, and it is awesome. Huge, but awesome. The function, fit, and quality of this line of watches is great. I never thought I would buy a more expensive G-Shock as the others I own are great, but this one is steps ahead. The compass feature works, there are all of the world’s time zones, and it looks amazing. The ONLY downside, is the black digital display is a little hard to read. Now, the seller. The watch was Prime, scheduled to arrive in two days. Nine days later, my watch showed up. It wasn’t an issue with shipping, it didn’t get placed for shipment until later, so it was on the seller. The box it was shipped in was perfect, but the Casio box was heavily damaged, telling me that it was placed in the shipping box that way. The metal box the watch came in wasn’t damaged in any way, but it was a let down the actual Casio box was. There were also fingerprints on the back of the watch case, so the watch had been handled by someone before it arrived to me. Maybe it was a return, maybe not, I don’t know. All in all, I love the watch and it is my new go to for everyday wear. However, the seller could have done a much better job in getting me my new watch, in a like new box, in new condition. ... show more
Reviewed in the United States on December 31, 2023 by Michael Jones

Price
Good deal ,I love it
Reviewed in the United States on August 15, 2026 by Eliezer Ramos

Nice
Great watch I love it but when it’s time to change the batteries take it to a jeweler do not self attempt. It’s not worth breaking the watch. This thing is a self-destructing piece of equipment once it’s opened.
Reviewed in the United States on October 1, 2026 by Richard/Flor

Classic G-Shock Toughness, But the Digital Display is Hard to Read
First of all, it’s a G-Shock. There is a reason this line is so iconic, and you really can’t go wrong with any model you choose. Most people already know how durable and reliable these watches are, so there isn't much to add there.However, there are two specific things worth noting about this Mudmaster model:The Size & Comfort: This is a big watch. I normally do not wear large watches, but despite its size, it wears incredibly comfortably on the wrist.The Digital Display: This is my only issue so far. The digital display features dark digits on a black background, making it very hard to read. Unfortunately, there is no setting to adjust the contrast. While it isn't a deal-breaker, I really wish Casio provided a menu option to invert the display or designed the built-in light to illuminate the digital section better.Overall, it's a fantastic, tough watch, but keep the dark screen in mind if you rely heavily on the digital features! ... show more
Reviewed in the United States on September 17, 2026 by Yazawa Nico

Exelente producto
Me encanta mi reloj, es de los mejores y me encanta el color, no me gustan los smartwatch, prefiero Casio un millón de veces mejor que estar cargando cada tres días.
Reviewed in the United States on July 30, 2026 by Victor Herrera Aviles

Great watch
Very nice
Reviewed in the United States on August 8, 2026 by JOHN

Muy bn
Excelente
Reviewed in the United States on August 6, 2026 by Marlon de la ossa
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