The Ultimate Guide to All G-SHOCKs — composed by Experts
The latest iteration of the storied MUDMASTER timepiece falls into the signature G-SHOCK step with improvements and innovations that are spot-on for outdoor enthusiasts. The incorporation of tough carbon fiber and a new “carbon core guard” case construction technique lead off those innovations. A large, but understatedly lit, LCD screen rides above 6 o’clock, ready to move centerstage when needed.
The pushers around the G-SHOCK case have received special additional protection from dirt, dust, water, and mud in the MUDMASTER GGB1000. Those pushers sync with the LCD screen display data to give temperature, barometer/altimeter readings, compass data, including a true “North” indication, as well as a new step-counter function, making this watch a “Quad Sensor” array. The dedicated pusher approach makes access to key features incredibly simple in the field, without having to cycle through multiple LCD display functions via a single activator for every display mode. All of the G-SHOCK sensor features can become crucial when playing in the woods, but the MUDMASTER GGB100 can also pre-load sunrise and sunset times via a connected G-SHOCK Connected App, ensuring an added level of safety for woodland adventures.






GG-B100 Profile / Casio G-Shock
Average Amazon Price: $320 (yes, we may earn a commission on qualifying purchases from our links to Amazon). Check the Price on Amazon →
Year of first release: 2019
Lineup: MUDMASTER (The Mudmaster has been designed to withstand the toughest of conditions. With a digital compass, barometer, altimeter, thermometer and step tracker, you’ll reach your goal even when challenges seem insurmountable. MUDMASTER – the perfect union of toughness and technical finesse.) All G-Shock MUDMASTER Watches →
Best for: Military, Army and Police Use, Big Wrists, Top in G-Shock Lookbooks
The most distinctive specs:
– 200-meter water resistance (good for swimming but not for deep diving)
– Mud Resistant (helps to ensure that nothing gets into the watch when down and dirty work takes you deep into the dirt and sludge)
– Carbon Core Guard structure (integrates the lugs and pipes that connect the band into single pieces, creating a wall that isolates the watch’s module from impact. The resin of the center case is also reinforced with carbon fibers, which further enhances module protection, while reducing overall weight)
– G-SHOCK Connected App (you may manage all watch settings through your phone)
– Mobile link (Wireless linking using Bluetooth(R)) (for time sync with your phone data)
– Digital compass (measures and displays direction as one of 16 points)
– Step count (A built-in 3-axis acceleration sensor begins counting steps the moment you start to walk.)
– Thermometer (can measure and display the outside temperature in a range from -10 C to 60 C)
– Barometer (measures the air pressures and displays tendencies in the weather)
– Altimeter (The electronic mechanism “estimates” the altitude based on the air pressure)
Other colors and full specs: GG-B100 Wiki Page
Only Limited Editions: GG-B100 Limited Editions
G-Shock GG-B100 Rating System

Size | ★★★★★ |
Weight | ★★★★ |
Functions | ★★★★★ |
Materials | ★★★★ |
Price | ★★★★ |