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A.I. Reviews v37.5 (refreshed with Grok 4.1 Fast)
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Model Name:
Casio G-Shock Master of G-Land Mudmaster
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Reference:
GGB100-1A
Price ($)
$
380
Country:
Japan
A.I. Rating
8
Crowd Rating:
895
Watch Description
This is a model from the G-Shock Mudmaster Series, designed for use in extreme environments scattered with rubble, dirt and debris, and uses carbon materials. The use of high rigidity carbon on the case keeps damage and deformation at bay, and ensures a high level of airtightness and shock resistance. This model also features a filter that protects against the invasion of mud, a stainless steel panel back, and a back cover made of shock-resistant fine resin embedded with glass fibers, giving it a high level of resistance to dust and mud. The bezel also uses three layers of fine resin with carbon fiber inserts and is designed to resemble a portable gasoline can that could be found on off-road vehicles. Function-wise, this model comes with compass, altimeter/barometer, temperature reader and pedometer. In addition to being able to easily correct the time using the dedicated CASIO WATCHES app, there are lots of other useful features including the Mission Log feature, which automatically records in the app altitude data obtained from the watch and route data obtained by your smartphone. This is a toughness watch that supports you in taking quick decisions and accurate actions.
Product Link:


51.3
55.4

0
19.4

200
Resin
Cushion
Mineral
Push-Pull
Quartz
0
Black
A.I. Watch Review:
# Casio G-Shock Master of G Land Mudmaster Review by A.I. WatchMetrics
## Watch Summary
The Casio G-Shock Master of G Land Mudmaster (GWG-1000-1A) is a massive, rugged tool watch in the iconic shockproof G-Shock style tailored for extreme terrestrial adventures, featuring a carbon fiber-reinforced resin case with innovative mud-resistant button guards and structure, an analog-digital display driven by Tough Solar quartz with Multi-Band 6 atomic timekeeping and up to 27 months power reserve, plus Triple Sensor Ver. 3 for compass, altimeter/barometer, and thermometer, targeting hardcore outdoor explorers, survivalists, and professionals demanding unbreakable durability over luxury appeal.
## Overall Watch Rating: 8.0/10.0
**Functions Metric (9.9/10.0)** - Packed with timekeeping essentials plus world time, alarms, stopwatch, and power indicator, it rivals dedicated outdoor multisport computers in sheer utility.
**Movement Metric (9.8/10.0)** - Tough Solar quartz with radio sync and triple sensors delivers atomic-level accuracy and longevity on par with top solar G-Shocks.
**Complications Metric (9.7/10.0)** - Triple Sensor suite alongside chronograph and multi-alarm setup provides survival-grade features comparable to high-end field instruments.
**Versatility Metric (9.2/10.0)** - Thrives in adventure, sports, travel, and tool roles with 200m water resistance and extreme environmental protections.
**Dials & Design Metric (8.8/10.0)** - Bold analog-digital layout with protective bezel and legible displays executes the rugged G-Shock formula as effectively as modern tactical watches.
**History & Innovation Metric (8.5/10.0)** - Builds on G-Shock's pioneering shock resistance heritage with specialized mud-proofing akin to Master of G predecessors.
**Material Metric (6.5/10.0)** - Carbon-reinforced resin offers lightweight toughness but trails metal-cased peers like Seiko Prospex in premium tactility.
**Brand Metric (5.2/10.0)** - Casio G-Shock upholds mid-tier reliability for tough daily drivers, matching Citizen and Seiko in accessible durability.
**Rarity Metric (4.0/10.0)** - Widely available on secondary markets like standard G-Shocks due to high-volume production.
## Total Performance Score (TPS): 9.4
## WM Collector Grade: A+
## Performance Insights: Dominates in functions, movement, complications, and versatility for tool-watch excellence, tempered by average materials and rarity, yielding tremendous value well above its modest price.
## TPS Interpretation: Outstanding Value: This Mudmaster vastly overperforms expectations for its price with pro-grade outdoor capabilities that justify a much higher implied market value.
## Watch Data
[Picture URL] - https://gshock.casio.com/us/wp-content/uploads/sites/2/2021/04/gwg1000-1a_01.png; [backPicture] - https://gshock.casio.com/us/wp-content/uploads/sites/2/2021/04/gwg1000-1a_03.png; [lumePicture] - https://gshock.casio.com/us/wp-content/uploads/sites/2/2021/04/gwg1000-1a_02.png; [Nickname] - G-Land Mudmaster; [Brand] - Casio; [Model] - G-Shock Master of G Land Mudmaster GWG-1000-1A; [Country] - Japan; [Product Link] - https://gshock.casio.com/us/products/gshock/gwg-1000-1a/; [reviewLink] - https://www.ablogtowatch.com/casio-g-shock-gwg-1000-1a-review/; [Movement Type] - Quartz; [Movement Name] - Tough Solar Multi Band 6 Triple Sensor Ver.3 Module 5611; [# Secondary] - 650; [watchDescription] - Rugged analog-digital G-Shock with carbon-reinforced resin case, mud and shock resistance, solar quartz movement, atomic timekeeping, and Triple Sensor for extreme land use.; [caseWidth] - 56.2; [lugToLugLength] - 62.0; [thickness] - 14.0; [lug] - 25; [waterResist] - 200; [powerReserve] - 27 months; [beatFrequency] - 32768; [lume] - Super Illuminator LED; [jewels] - 0; [caseMaterial] - Carbon fiber-reinforced resin; [watchGlass] - Mineral; [Bezel] - Screw-lock carbon resin; [caseback] - Solid screw-lock; [Crown] - Screw-lock buttons; [Strap] - Resin; [Shape] - Tonneau; [Dial] - Analog-digital; [Seconds] - Yes; [Date] - Yes; [Calendar] - No; [Chiming] - No; [Chronograph] - Yes; [Compass] - Yes; [dateCompilation] - No; [DigitalDisplay] - Yes; [Dress] - No; [Field] - No; [GMT] - No; [Mechanical Alarm] - No; [Moonphase] - No; [Tourbillon] - No; [worldTimer] - Yes; [powerReserveIndicator] - Yes; [Diver] - No; [Pilot] - No; [racing] - No; [Skeleton] - No; [Vintage] - No; [StyleFormal] - No; [StyleCasual] - Yes; [StyleSports] - Yes; [StyleTravel] - Yes; [StyleAdventure] - Yes; [StyleCollector] - No; [StyleTool] - Yes; [StyleStatement] - Yes; [StyleVintage] - No; [StyleSmart] - No; [StyleCustom] - No; [TPS_new] - 9.4; [TPSgrade] - A+; [TPSimpliedPrice] - 1500;
**A.I. WatchMetrics Review v37.4 Grok 4 Fast. December 19, 2025.**


