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G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster
G-Shock GWG-100-1AER Watch - Mudmaster

G-Shock GWG-100-1AER Watch - Mudmaster

Mudmaster by name and also by nature, this iconic Casio G-Shock watch is resistant to shock, mud, dust, water and vibration, with a long list of other features - a watch to be experienced and enjoyed. The rugged 56 x 55 x 17mm resin case is protected by mineral glass, with an analogue and digital display and is radio controlled for accuracy and solar powered for reliability. Other functions include five daily alarms, automatic calendar, stopwatch and countdown timer, date and day display, illumination, mute function and world time. Water resistant 200m, it is perfect for free diving without scuba gear.

Mudmaster by name and also by nature, this iconic Casio G-Shock watch is resistant to shock, mud, dust, water and vibration, with a long list of other features - a watch to be experienced and enjoyed. The rugged 56 x 55 x 17mm resin case is protected by mineral glass, with an analogue and digital display and is radio controlled for accuracy and solar powered for reliability. Other functions include five daily alarms, automatic calendar, stopwatch and countdown timer, date and day display, illumination, mute function and world time. Water resistant 200m, it is perfect for free diving without scuba gear.

G-Shock GWG-100-1AER Watch - Mudmaster

Mudmaster by name and also by nature, this iconic Casio G-Shock watch is resistant to shock, mud, dust, water and vibration, with a long list of other features - a watch to be experienced and enjoyed. The rugged 56 x 55 x 17mm resin case is protected by mineral glass, with an analogue and digital display and is radio controlled for accuracy and solar powered for reliability. Other functions include five daily alarms, automatic calendar, stopwatch and countdown timer, date and day display, illumination, mute function and world time. Water resistant 200m, it is perfect for free diving without scuba gear.

Mudmaster by name and also by nature, this iconic Casio G-Shock watch is resistant to shock, mud, dust, water and vibration, with a long list of other features - a watch to be experienced and enjoyed. The rugged 56 x 55 x 17mm resin case is protected by mineral glass, with an analogue and digital display and is radio controlled for accuracy and solar powered for reliability. Other functions include five daily alarms, automatic calendar, stopwatch and countdown timer, date and day display, illumination, mute function and world time. Water resistant 200m, it is perfect for free diving without scuba gear.

Price comparison

Price data powered by pricesAPI.io

Last updated at 06/09/2026 17:21:29

eBay.com.au

$323.39

Casio G-shock Gwg-100-1ajf Mudmaster Solar Radio Analog Digital 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!

eBay.com.au

$328.90

Casio G-shock Gwg-100-1ajf Mudmaster Solar Radio Analog Digital 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!

eBay.com.au

$395.03

Casio G-shock Mudmaster Gwg-100gb-1ajf Chrono Digi Solar Black Watch

Delivery $9.40

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!

eBay.com.au

$397.47

G-shock Master Of Mudmaster Gwg-100-1ajf Solar Digital G-shock From

Delivery $33.81

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!

eBay.com.au

$403.06

Used Casio Shock Shock Mudmaster Gwg 100 Watch Wristwatch Men S Radio

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!

eBay.com.au

$408.56

Casio G-shock Mudmaster Gwg-100gb-1ajf Chrono Digi Solar Black Watch

Delivery $16.20

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!

eBay.com.au

$427.78

Casio G-shock/madmaster Gwg-100-1ajf Black Men's Used Watch 11154

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!

eBay.com.au

$458.83

Casio 2018 G-shock Mudmaster Gwg-100-1ajf Men Watch In Box

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!

eBay.com.au

$461.81

Casio G-shock Mudmaster Gwg-100-1a Tough Solar Radio-controlled 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!

eBay.com.au

$474.62

Casio G-shock Gwg-100-1ajf Mudmaster Total Black Atomic Solar 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!

Price history

Price history

Reviews

Best of the Mudmasters?
10 April 2021harriet411

originally posted on ebay.com

Really great looking watch that functions with classic Casio quality and precision. Love the chunky size, it is a big watch but wears easily and comfortably. Nice and light but definitely a lot of wrist presence. The blue toned light function is a thing of beauty and the lume is excellent and fit for purpose. This black with green strap combo is the nicest, in my opinion but the other versions may be more to others' taste (black and grey with red accents, and I think a black with black version.) Bought the watch as a super tough daily wear for working outside, at the gym after work and camping, outdoorsy stuff at weekends. It is perfect for this and takes everything in its stride. Too many functions to mention; the lack of second hand bothers some people but it is ... MoreReally great looking watch that functions with classic Casio quality and precision. Love the chunky size, it is a big watch but wears easily and comfortably. Nice and light but definitely a lot of wrist presence. The blue toned light function is a thing of beauty and the lume is excellent and fit for purpose. This black with green strap combo is the nicest, in my opinion but the other versions may be more to others' taste (black and grey with red accents, and I think a black with black version.) Bought the watch as a super tough daily wear for working outside, at the gym after work and camping, outdoorsy stuff at weekends. It is perfect for this and takes everything in its stride. Too many functions to mention; the lack of second hand bothers some people but it is fine by me, it keeps the dial clearer; bit of a faff to set up as I'm a G shock newb but youtube vids proved very helpful. Think the watch is worth the money; and the function to set the time using atomic radio is super cool, the cheaper GSG version doesn't have this function. Solar powered battery is also very cool. All in all, delighted with it and would totally recommend.

G-Shock GWG-100-1AER Mudmaster Wristwatch
18 November 2018Anonymous

originally posted on hsjohnson.com

This watch is great. It is a big watch so if you have small wrists take that into consideration.It is a little stiff at first but after a week of wearing the watch it breaks in nicely. Atomic timekeeping is the way to go, if you want accurate time. Solar power also is a must for me when spending over $250 on a g shock watch since you won't need to replace a battery. This is not a twin sensor so keep that in mind but I believe this watch looks the best out of all the GWG models and is the reason i bought this watch. I have had many compliments on this watch. The only complaint i have is i wish the back light was a bit brighter, other than that you can not go wrong with this purchase.

G-Shock GWG-100-1AER Mudmaster Wristwatch
12 March 2019Paul D

originally posted on hsjohnson.com

Replacement for a well battered and well used 14 year old G-Shock. Wanted a watch that could cope with an often dark work environment without the need to press buttons to tell the time as well as one that could cope with the dust. Did have a concern about the bracelet.Pros: a lot lighter than 'old' G-Shock. Bracelet very sturdy (double pronged - not single pronged as most buckles are) and will well outlast a metal one in appearance.Cons: has gone down in price since I bought it. C'est la vie,On my wrist within 20 hours of ordering. Informed at every stage of order process. Excellent (5/5) customer service. Down to taste whether a watch is 5/5 as always something you would wish to alter over time (I'll just have to buy another later if my taste changes) but has ... MoreReplacement for a well battered and well used 14 year old G-Shock. Wanted a watch that could cope with an often dark work environment without the need to press buttons to tell the time as well as one that could cope with the dust. Did have a concern about the bracelet.Pros: a lot lighter than 'old' G-Shock. Bracelet very sturdy (double pronged - not single pronged as most buckles are) and will well outlast a metal one in appearance.Cons: has gone down in price since I bought it. C'est la vie,On my wrist within 20 hours of ordering. Informed at every stage of order process. Excellent (5/5) customer service. Down to taste whether a watch is 5/5 as always something you would wish to alter over time (I'll just have to buy another later if my taste changes) but has all the functions and more that I require. If this watch gives me the same service as 'old' G-Shock it will prove a bargain.

Specification

Alternative nrGWG-100-1A
Diameter54.9 mm
Water resistant20 Bar (Dive)
TIMEHours - Analogue hand
CalendarDate - Digital

Price comparison

Updated 5 days ago
eBay.com.au

$323.39

Casio G-shock Gwg-100-1ajf Mudmaster Solar Radio Analog Digital 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!

eBay.com.au

$328.90

Casio G-shock Gwg-100-1ajf Mudmaster Solar Radio Analog Digital 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!

eBay.com.au

$395.03

Casio G-shock Mudmaster Gwg-100gb-1ajf Chrono Digi Solar Black Watch

Delivery $9.40

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!

eBay.com.au

$397.47

G-shock Master Of Mudmaster Gwg-100-1ajf Solar Digital G-shock From

Delivery $33.81

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!

eBay.com.au

$403.06

Used Casio Shock Shock Mudmaster Gwg 100 Watch Wristwatch Men S Radio

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!

Price history

Price history

Reviews

Best of the Mudmasters?
10 April 2021

Really great looking watch that functions with classic Casio quality and precision. Love the chunky size, it is a big watch but wears easily and comfortably. Nice and light but definitely a lot of wrist presence. The blue toned light function is a thing of beauty and the lume is excellent and fit for purpose. This black with green strap combo is the nicest, in my opinion but the other versions may be more to others' taste (black and grey with red accents, and I think a black with black version.) Bought the watch as a super tough daily wear for working outside, at the gym after work and camping, outdoorsy stuff at weekends. It is perfect for this and takes everything in its stride. Too many functions to mention; the lack of second hand bothers some people but it is ... MoreReally great looking watch that functions with classic Casio quality and precision. Love the chunky size, it is a big watch but wears easily and comfortably. Nice and light but definitely a lot of wrist presence. The blue toned light function is a thing of beauty and the lume is excellent and fit for purpose. This black with green strap combo is the nicest, in my opinion but the other versions may be more to others' taste (black and grey with red accents, and I think a black with black version.) Bought the watch as a super tough daily wear for working outside, at the gym after work and camping, outdoorsy stuff at weekends. It is perfect for this and takes everything in its stride. Too many functions to mention; the lack of second hand bothers some people but it is fine by me, it keeps the dial clearer; bit of a faff to set up as I'm a G shock newb but youtube vids proved very helpful. Think the watch is worth the money; and the function to set the time using atomic radio is super cool, the cheaper GSG version doesn't have this function. Solar powered battery is also very cool. All in all, delighted with it and would totally recommend.

harriet411 originally posted on ebay.com
G-Shock GWG-100-1AER Mudmaster Wristwatch
18 November 2018

This watch is great. It is a big watch so if you have small wrists take that into consideration.It is a little stiff at first but after a week of wearing the watch it breaks in nicely. Atomic timekeeping is the way to go, if you want accurate time. Solar power also is a must for me when spending over $250 on a g shock watch since you won't need to replace a battery. This is not a twin sensor so keep that in mind but I believe this watch looks the best out of all the GWG models and is the reason i bought this watch. I have had many compliments on this watch. The only complaint i have is i wish the back light was a bit brighter, other than that you can not go wrong with this purchase.

Anonymous originally posted on hsjohnson.com
G-Shock GWG-100-1AER Mudmaster Wristwatch
12 March 2019

Replacement for a well battered and well used 14 year old G-Shock. Wanted a watch that could cope with an often dark work environment without the need to press buttons to tell the time as well as one that could cope with the dust. Did have a concern about the bracelet.Pros: a lot lighter than 'old' G-Shock. Bracelet very sturdy (double pronged - not single pronged as most buckles are) and will well outlast a metal one in appearance.Cons: has gone down in price since I bought it. C'est la vie,On my wrist within 20 hours of ordering. Informed at every stage of order process. Excellent (5/5) customer service. Down to taste whether a watch is 5/5 as always something you would wish to alter over time (I'll just have to buy another later if my taste changes) but has ... MoreReplacement for a well battered and well used 14 year old G-Shock. Wanted a watch that could cope with an often dark work environment without the need to press buttons to tell the time as well as one that could cope with the dust. Did have a concern about the bracelet.Pros: a lot lighter than 'old' G-Shock. Bracelet very sturdy (double pronged - not single pronged as most buckles are) and will well outlast a metal one in appearance.Cons: has gone down in price since I bought it. C'est la vie,On my wrist within 20 hours of ordering. Informed at every stage of order process. Excellent (5/5) customer service. Down to taste whether a watch is 5/5 as always something you would wish to alter over time (I'll just have to buy another later if my taste changes) but has all the functions and more that I require. If this watch gives me the same service as 'old' G-Shock it will prove a bargain.

Paul D originally posted on hsjohnson.com
Review Title
21 December 2022

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.

Craig originally posted on firstclasswatches.co.uk
Review of G-Shock Mudmaster Tough Solar Radio-Controlled Watch GWG-100-1A3ER
25 January 2020

Love Casio G-Shocks, only watches I don’t break. I bought this one for when I’m biking or trekking and following outdoor pursuits, super tough exterior, clear analog display with digital back displays, light is useful too. I only get the G-shocks that are solar powered and are set by radio control, just makes the watch low maintenance and easier to use. The GWR-100-1A3ER is built like a tank, has loads of features,clear display and looks great.

Reviewed by WatchO Limited | Online customer originally posted on watcho.co.uk
Review of G-Shock Mudmaster Tough Solar Radio-Controlled Watch GWG-100-1AER
30 April 2019

Having had this watch on my wrist for a couple of months now I can say that I am mildly disappointed with its general operation.Firstly my negative observations:-Despite placing it in direct sunshine/daylight for an hour every morning from day one, which should keep its solar battery completely topped up, it very quickly loses its charge during the day and, for the most part, indicates that it is only moderately charged up. I find this concerning especially since the manufacturers claim it will run in total darkness for several months.Secondly, one of the main reasons I bought this watch was for its ability to display time/day/date/month with atomic accuracy. Although this is true, I have found that it is very difficult to glance at and immediately be able to ... MoreHaving had this watch on my wrist for a couple of months now I can say that I am mildly disappointed with its general operation.Firstly my negative observations:-Despite placing it in direct sunshine/daylight for an hour every morning from day one, which should keep its solar battery completely topped up, it very quickly loses its charge during the day and, for the most part, indicates that it is only moderately charged up. I find this concerning especially since the manufacturers claim it will run in total darkness for several months.Secondly, one of the main reasons I bought this watch was for its ability to display time/day/date/month with atomic accuracy. Although this is true, I have found that it is very difficult to glance at and immediately be able to read the dials because they are deeply recessed and the numbers/letters are very dimly highlighted. To obtain the details required, the watch has to be twisted and held at certain angles for the natural light to shine on it which is very irritating.Thirdly, at night, when the brief highlight facility operates, its display is totally confusing because it also highlights bars at the quarter hours. These bars tend to get confused with the hands of the watch. When the light goes out after a couple of seconds, invariably, I am still no wiser as to the time. Again, very irritating.My positive comments are that the watch itself is very robust as claimed by the manufacturers and, from my point of view, extremely accurate being regulated by the atomic clock.I can only say that, if there could be an improvement on my negative comments, the watch would certainly be a superb timepiece.

Reviewed by WatchO Limited | Online customer originally posted on watcho.co.uk
Review of Waveceptor Men's Master Of G Mudmaster Watch
20 January 2024

Best Master of G. If you don't need the gadgets that the other models have, who actually does apart from mountaineers and polar explorers. This is my second, my grandson claimed the other. Just like my other tough solar waveceptors I know I'll get many years hassle free accurate timekeeping. If you get the chance buy one.

Reviewed by Francis & Gaye Ltd customer originally posted on francisandgaye.co.uk

Specification

Alternative nrGWG-100-1A
Diameter54.9 mm
Water resistant20 Bar (Dive)
TIMEHours - Analogue hand
CalendarDate - Digital