G-Shock Mudmaster GSG-100-1A8 with Tough Solar
The Casio G-Shock Mudmaster Duo/Solar Analogue/Digital watch is designed and engineered for wear and use by those whose work takes them into areas scattered with rubble, dirt and debris. Double LED light – neon illuminator Hand shift feature Tough solar World time (31 time zones) Neobrite Battery level indicator Power saving mode Dirt and mud resistant Shock resistant Up to 200m water-resistant Maximum of 19 months on rechargeable battery in total darkness in the power save function The Casio G-Shock Mudmaster Duo/Solar Analogue/Digital watch packs with solar powered operation into dirt and mud resistant configurations. The button guard cylinder structure of these models seals out mud and dust, enabling use in severe environments. Cylindrical piping protects buttons against impact and improves their operation and gaskets inside the buttons prevent the entry of fine sand and dust particles. The rugged design of this watch is in the image of the special purpose vehicles and tools that are used by disaster relief teams – perfect choice for anyone who requires tough performance under tough conditions.
The Casio G-Shock Mudmaster Duo/Solar Analogue/Digital watch is designed and engineered for wear and use by those whose work takes them into areas scattered with rubble, dirt and debris. Double LED light – neon illuminator Hand shift feature Tough solar World time (31 time zones) Neobrite Battery level indicator Power saving mode Dirt and mud resistant Shock resistant Up to 200m water-resistant Maximum of 19 months on rechargeable battery in total darkness in the power save function The Casio G-Shock Mudmaster Duo/Solar Analogue/Digital watch packs with solar powered operation into dirt and mud resistant configurations. The button guard cylinder structure of these models seals out mud and dust, enabling use in severe environments. Cylindrical piping protects buttons against impact and improves their operation and gaskets inside the buttons prevent the entry of fine sand and dust particles. The rugged design of this watch is in the image of the special purpose vehicles and tools that are used by disaster relief teams – perfect choice for anyone who requires tough performance under tough conditions.
The Casio G-Shock Mudmaster Duo/Solar Analogue/Digital watch is designed and engineered for wear and use by those whose work takes them into areas scattered with rubble, dirt and debris. Double LED light – neon illuminator Hand shift feature Tough solar World time (31 time zones) Neobrite Battery level indicator Power saving mode Dirt and mud resistant Shock resistant Up to 200m water-resistant Maximum of 19 months on rechargeable battery in total darkness in the power save function The Casio G-Shock Mudmaster Duo/Solar Analogue/Digital watch packs with solar powered operation into dirt and mud resistant configurations. The button guard cylinder structure of these models seals out mud and dust, enabling use in severe environments. Cylindrical piping protects buttons against impact and improves their operation and gaskets inside the buttons prevent the entry of fine sand and dust particles. The rugged design of this watch is in the image of the special purpose vehicles and tools that are used by disaster relief teams – perfect choice for anyone who requires tough performance under tough conditions.
The Casio G-Shock Mudmaster Duo/Solar Analogue/Digital watch is designed and engineered for wear and use by those whose work takes them into areas scattered with rubble, dirt and debris. Double LED light – neon illuminator Hand shift feature Tough solar World time (31 time zones) Neobrite Battery level indicator Power saving mode Dirt and mud resistant Shock resistant Up to 200m water-resistant Maximum of 19 months on rechargeable battery in total darkness in the power save function The Casio G-Shock Mudmaster Duo/Solar Analogue/Digital watch packs with solar powered operation into dirt and mud resistant configurations. The button guard cylinder structure of these models seals out mud and dust, enabling use in severe environments. Cylindrical piping protects buttons against impact and improves their operation and gaskets inside the buttons prevent the entry of fine sand and dust particles. The rugged design of this watch is in the image of the special purpose vehicles and tools that are used by disaster relief teams – perfect choice for anyone who requires tough performance under tough conditions.
in 6 offers
The lowest price for G-Shock Mudmaster GSG-100-1A8 with Tough Solar right now is $275.00 at DownUnderWatches.com, compared across 5 retailers.
The all-time low was $195.00 on 28 Apr 2026 — today's price is 41% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 7 June 2026.
Last updated at 07/06/2026 14:08:48
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originally posted on ebay.com
Been wearing G-Shock watches for about 10 years. 2 watches. This watch is awesome. Love it.
originally posted on watchdirect.com.au
First impressions, good sized watch, the font and lcd displays are very small and not easy to see. The function buttons are not so intuitive. Perhaps more colour definition with the hands would be good. This watch is great for someone who has great eyesight, not so good for older poor eyesight. Will wait too see how it goes over time, hopefully good.
originally posted on ebay.com
Been a Casio ProTrek wearer for a while now. Decided to get something a little bigger. The Mudmaster certainly delivered. Bold and sophisticated. I wear it in the office. This is a very comfortable watch to wear. The SGS variant is cheaper but doesn't include the sensors. It does however come with solar, which is a good tradeoff in my opinion. Once your collection grows to 5 or 6 watches - tracking down batteries and changing them ever 2 years becomes a hassle. Very happy with this purchase, and can recommend the Mudmaster for anyone looking for a man-sized watch for daily use.
| Watch Material | Resin |
| Watch Movement | Quartz |
| Water Resistance | 200m |
| Watch Dial Diameter | 549mmDate & Day |
Refurbished Casio G-Shock Mudmaster Tough Solar 200M GSG-100-1A8 Men's Watch
Free delivery
Casio G-Shock Mudmaster Master of G Solar Sport Watch GSG-100-1A8, GSG100
Free delivery
G-shock Mudmaster 'black'
Delivery $162
CASIO G-SHOCK GSG-100-1A8DR - TOUGH & STYLISH MEN'S WATCH WITH BLACK RESIN BAND AND DIGITAL DISPLAY
Delivery $39.26
Casio G-shock Gwg-100-1a8jf Black Mudmaster Atomic Radio Men's Watch
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Been wearing G-Shock watches for about 10 years. 2 watches. This watch is awesome. Love it.
First impressions, good sized watch, the font and lcd displays are very small and not easy to see. The function buttons are not so intuitive. Perhaps more colour definition with the hands would be good. This watch is great for someone who has great eyesight, not so good for older poor eyesight. Will wait too see how it goes over time, hopefully good.
Been a Casio ProTrek wearer for a while now. Decided to get something a little bigger. The Mudmaster certainly delivered. Bold and sophisticated. I wear it in the office. This is a very comfortable watch to wear. The SGS variant is cheaper but doesn't include the sensors. It does however come with solar, which is a good tradeoff in my opinion. Once your collection grows to 5 or 6 watches - tracking down batteries and changing them ever 2 years becomes a hassle. Very happy with this purchase, and can recommend the Mudmaster for anyone looking for a man-sized watch for daily use.
An awesome watch , very functional and very stylish at the same time. I work in a pretty harsh environment and Im tough on watches. This one seems to be standing up to my abuse very well .
Its basically the mud Master without the triple sensor stuff and great illumination. If you need to see what time it is at night. Its not atomic but it is solar and it loses about 15 seconds a year if you said it with any atomic watch.
Casios are usually incredible value for the money, built to last, with tons of useful features and ultra consistent interfaces across all lines. This Mudmaster may very well be the very best Casio Ive ever bought. While a lot of Casios are a hair short of greatness, usually due to poor legibility, this giant of a watch hits it right out of the park. Positive LCD displays, high contrast dial and great choice of hands all work to make this easily the most readable Casio I own. Throw in the expected shock and water resistance, along with a worry-free tough solar power plant and this Mudmaster is a Casio everyone should own. Casio almost never disappoints. Love them or not (I happen to love them) all the companys watch designs are fierce originals. This Mudmaster is ... MoreCasios are usually incredible value for the money, built to last, with tons of useful features and ultra consistent interfaces across all lines. This Mudmaster may very well be the very best Casio Ive ever bought. While a lot of Casios are a hair short of greatness, usually due to poor legibility, this giant of a watch hits it right out of the park. Positive LCD displays, high contrast dial and great choice of hands all work to make this easily the most readable Casio I own. Throw in the expected shock and water resistance, along with a worry-free tough solar power plant and this Mudmaster is a Casio everyone should own. Casio almost never disappoints. Love them or not (I happen to love them) all the companys watch designs are fierce originals. This Mudmaster is destined to be a classic. Outstanding.
Having came across the G-Shock GWG-100 online. I emailed first class watches when I found it cheaper elsewhere. The price was matched and I ordered it on the following Saturday. The watch arrived on Tuesday via DPD and is better than I expected. It fits nicely, the timekeeping is accurate to more than a second and is now fully charged with it being solar. An absolute beast of a watch and for day to day timekeeping is incredible. This is my first purchase of a G-Shock and my first time ordering from first class watches. I shall be checking back in future when more purchases are to be made if they are in stock at the right price.
This is one of the best looking watches in the vast Casio G-Shock range. Its ideal for any outdoor activities, being mud resistant and water resistant to 200m. Its a big watch but doesnt look too big at all on my 7 1/4 inch wrist. Best of all its solar powered so youll never have to change the battery and compromise the seal. An outstanding watch, well worth the money.
I collect G Shocks and currently have about 27 of them. I normally wear a different watch each day. But this one seems to be getting a lot more wrist time than the others. It's a good sized watch but extremely comfortable. I really prefer solar models and this one is one of those. It charges qick and once fully charge it stays that way from daily or even occasional use. One reason for that is it doesn't have all the extra sensors to use up battery life. I highly recommend this model for anyone that wants a nice rugged watch that will not need a battery change for many years. Just beware, there are a lot of fakes out there but plenty of videos showing how to easily spot them.
Excellent watch. I was a little worried with the size, my wrists are just under 7, but it looks great. I get a lot of compliments on its style. Im in construction so I needed a tough watch but didnt want an ugly watch. I was looking at the Casio G-Shock gg models but they are battery only. This watch is solar powered so plus plus. A really comfortable , tough good looking watch
| Watch Material | Resin |
| Watch Movement | Quartz |
| Water Resistance | 200m |
| Watch Dial Diameter | 549mmDate & Day |
