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🌍 タフさと先進技術が融合した、あなたの冒険の相棒
カシオのG-SHOCK Master of G MUDMASTER GWG-B1000-3AJFは、金属とカーボンを融合した堅牢な外装により耐衝撃・防塵・防泥性能を備え、20気圧防水で水辺でも安心。電波ソーラー搭載で常に正確な時刻を表示し、方位・気圧・高度・温度を計測するトリプルセンサーを装備。さらにBluetooth連携やロケーションインジケーター機能で現代の冒険をサポート。環境配慮型のバイオマスプラスチックも採用し、機能性とサステナビリティを両立したフラッグシップモデルです。

| Amazon Bestseller | #675 in Men's Wrist Watches |
| Asin | B0CJJ6JXYQ |
| Batteries | 1 Unknown batteries required. (included) |
| Date First Available | October 9, 2023 |
| Department | Men |
| Item Model Number | GWG-B1000-3AJF |
| Manufacturer | CASIO(カシオ) |
| Package Dimensions | 12 x 9.4 x 9.2 cm; 114 g |
| Release Date | October 13, 2023 |
User
ゴツイ感じがいい!
プロトレックのデジタルを使っています。かなりの歳月が経ちますが、不具合等はないのですが、G SHOCKのゴツイ感じの時計が欲しくなり購入、大満足です!
User
とにかくかっこいい
頑丈な売りのG-SHOCKの中でも、更に頑丈を謳うマッドマスター。現場最強です!!
User
買って良かった~😀
ローズゴールドボディとえんじ色のバンドの相性ば最高!高いけど、買って満足する一品です!
User
ハードに使うべき何でしょうが勿体無い😂
見た目のゴツゴツ感の割に軽くはめ心地良好、私の操作が間違っているのでしょうか目的地が短時間でリセットされる気がします私が使い熟せてない感か?
User
たまげるほどカッコいい!
すばらしい! こんなに カッコいい G-SHOCK 見たことない G-SHOCK史上 Best3にはいりますね😁 今回 購入しないと後悔するよ!😉
User
高品質
何故かメーカー希望額より安いですが、ちゃんと国産品がきました。大変満足です。
User
最高
最高です。思った通りの時計がポイントもついて大満足です。
User
でかい
デザインが良いので満足です。ただ、でかい。
User
Very Good with no regrets
Just received this watch and everything runs as should be. It was very easy to download the casio app and pair it with my phone. The app makes setting the watch up to my personal requirements a breeze. I wanted to clear something up. This band is bordeaux, its not red, its not orange or any other color. The band is not flashy, won't stand out and in my opinion a very nice low profile color. Bordeaux is very difficult to photograph and the color can not be accurately captured in photos. The watch fits my medium sized wrist well and its an over exageration that it is huge, its a large working watch and I am glad i bought it.
User
It's BEAUTY & THE BEAST
Based on owning one for over a year. In short: this watch is exceptional. If you’re into rugged, feature‑packed tool watches, it really delivers. But like any high‑end tough watch, it has trade‑offs. I’ll cover everything—what I love, what could be better, and whether it’s worth the price.What Makes It Amazing (What I Love)After a year of daily wear, especially outdoors, travel, and “real‑work” use, these are the highlights:DurabilityThis thing really lives up to its rugged billing. Mud, rain, grit, dirt, occasional bumps—all no problem. The “Mud Resistance / Mudmaster” name is not just hype. The button guards, sealings, materials hold up. Even after rough use there’s minimal cosmetic wear (very, very light scratches here and there) and zero functional issues.Reliability / PowerSolar charging works well. Even with mixed conditions (indoors some days, outdoors others), the battery remains in healthy levels. Also the Multi‑Band 6 atomic time sync keeps time dead‑on without needing constant manual adjustment. For a guy who travels or changes timezone occasionally, that’s a huge relief.Sensor Suite & Utility* Altimeter/barometer: I use these often when hiking. The trends are useful (pressure rises/falls).* Compass: very handy when navigating off‑road. The bearing memory and location indicator functions (via the app) add extra value (set a point, coming back to it etc.).* Thermometer: works decently well (though you need to remove watch, let it settle to ambient) but adequate.* Sunrise/sunset: surprisingly useful. I don’t need to pull out my phone constantly to check light conditions.Visibility & ReadabilityThe sapphire crystal is excellent—no hazing or major scratches. The anti‑reflective coating helps a lot in bright sun. The analog hands are large enough, clear; the Neobrite luminescence (glow) is decent, enough to read things after dark. The dials and subdials are intuitive (once you’ve gotten used to where everything is).Build & Style / PresenceLet’s face it: this watch *looks* and *feels* like a flagship. It has weight, heft, and that “pro tool” aesthetic. The metal + resin + carbon/bio‑resin combination gives it both toughness and a refined edge. On‑wrist it commands attention without being gaudy.Added Modern ConveniencesBluetooth + app connectivity, location‑indicator functions, auto correction of altitude, ability to adjust settings via phone—these make using it much more convenient than purely analog/digital watches without these features.Things That Could Be Better (Trade‑Offs / Minor Drawbacks)Even though the watch is amazing, there *are* trade‑offs and “wish’d it were slightly more perfect” bits (just to give a balanced view):Size & BulkIt is large and thick. The 16‑mm thickness plus wide band make it feel chunky. On smaller wrists (or under tight shirt cuffs) it can be a bit intrusive. For everyday formal wear, it might be overkill.Complexity / Learning CurveThere are a lot of modes, subdials, buttons. If you don’t read the manual (or use the app) to understand what each sensor, dial, subdial, or function is doing, it can be a bit confusing. Adjusting, calibrating sensors (esp compass/altimeter), knowing how to use bearing memory etc. requires some patience.Response Time / Sensor PrecisionSome sensors (like temperature) lag behind environment unless you let the watch stabilize. The compass occasionally requires recalibration in various magnetic environments. The altitude readings are accurate but not perfect—especially in changing weather conditions or when moving quickly. That’s expected, though, given the tech.Weight vs ComfortWhile 114g is lighter than some comparable tool watches, it’s still noticeable. After several hours of wear (especially doing strenuous things or arm movements) you feel that weight. The band is rugged but not super plush; for extended wear (e.g., all‑day hike), pairing with lighter straps (if possible) helps.PriceThis is a premium model, and the price reflects that. For those who need only basic functionality (such as time and stopwatch), there are more affordable G-Shocks that deliver excellent value. If you’re buying this, you’re paying partly for ruggedness, materials, prestige, and features. That’s fine if you use those; less so if many features will go unused.Limited “Smartwatch” featuresIt’s not a smartwatch. No notifications, limited to noizable phone alerts, no fitness tracking (steps, heart rate etc.). If you expect those in a “connected” watch, you’ll be disappointed. It’s more tool‑watch + sensor + time keeping + ruggedness, rather than “smartwatch replacement.”My Experience Over 12+ MonthsPutting together how it’s held up and how I actually use it:* I’ve used it in rain, mud, sand. After sweaty sweaty days in hot sun & humid weather, it still functions beautifully. No issues with fogging or moisture infiltration.* Solar holds up nicely—even in seasons or locations where sun is sparse, the power reserve stays healthy.* The Bluetooth + app still functions well: occasionally a firmware downward tweak, but generally stable. Calibrating sensors via the app has been easier than fiddling with buttons.* The watch feels like it could survive decades of rugged use. The case, crystal, bezel guards still look solid. Some light paint wear/finish wear on button edges, but given how much punishment it’s seen, that’s totally acceptable.* I tend to wear it more than dress watches now, even in urban / work settings, because it gives me peace of mind: “I don’t need to baby this one.”Should You Get One? Who It’s Best ForGiven everything, I think this watch is worth it, if you fall into one or more of these categories:* You spend a lot of time outdoors (hiking, camping, fishing, construction, fieldwork etc.), and need a rugged, reliable watch with robust sensors.* You appreciate tool‑watches more than fashion watches. Function over frivolity.* You want features like solar charging + radio time sync + compass/altimeter/barometer built in, so that you’re not pulling out multiple devices.* You don’t mind size / bulk; you want toughness and don’t care much about a thin profile.Final ThoughtsAfter over a year, the Casio G‑Shock GWG‑B1000‑1AJF isn’t just good—it’s impressive in nearly every respect it sets out to deliver. The build, durability, sensors, power, and utility justify the cost for those who actually need them. It’s not perfect, but its imperfections are small compared to the strengths.This is a beast of a watch that works as hard as you do, and will keep up through nearly anything you throw at it, and will likely continue to work and survive after a Zombie Apocalypse.
User
Ex lente producto
Excelente calidad y estilo ñ, de lo mejor de G-SHOCK
User
Best Mudmaster yet!
One of the best Casio Mudmasters made well worth it, this is my second Mudmaster and was well worth the price. If you can afford it go for it you will not be sorry, the pictures do not do it justice it is much better looking in person! Also do not believe the post about it being hard to set up all you need to do is connect it to the phone app and it does it all by itself. Total set up time was around 30 to 45 seconds!After a few days with this I can only say that this is by far the best G-Shock that I have ever owned, it is a pure masterpiece and it works great, as I said before if you can afford it, you will not be sorry it is well worth the price although it came real close to my cut off price of $1000 dollars. I do not feel that any watch is worth that much no matter who makes it.
User
On time
Wonderful , my grandson was very happy to receive his g-shick on time
Trustpilot
1 month ago
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