| Size | ★★★★★ |
| Weight | ★★★★ |
| Functions | ★★★★★ |
| Materials | ★★★★ |
| Price | ★★★★ |
GG-B100 Model Range *may be updated
*Want to be the first to know about new G-Shock Updates? Here we store all recent Monthly G-Shock Updates →
Quick Content Guide
- GG-B100 Model Range *in different colors and bands
- Japanese Unique Features in GG-B100! *the most distinctive features in details
- General information about the watch *year of first release, model range etc.
- Official GG-B100 Video *only from Casio Company
- G-Shock GG-B100 Display Guide *for key functions only
- G-Shock GG-B100 on the wrist! *only images and only on the wrist
- Famous people wearing G-Shock GG-B100! *updates
- GG-B100 Usage Patterns *what the watch is usually meant for
- Feedback from Users and Experts *anonymous from different sources
- GG-B100 Limited Editions *unique style, materials, and price
- The most distinctive specs *from our Editorial point of view
- Other G-Shock GG Watches *similar by price and functions but different by cases
- Official GG-B100 Specs *all details and for base version GG-B100-1A3
- GG-B100 Comparison Table *with similar G-Shock Watches
- Full Photo Gallery *various images
- Recent News about GG-B100 *the latest breaking news and videos
About the Watch in Short. The latest representative of the dirt-resistant direction of the G-Shock Mudmaster. The special design of the case and buttons does not allow dust, dirt and other small particles to get inside the watch, and the protective concept of Carbon Core Guard takes the impact resistance of the case to a whole new level, thanks to the presence of carbon parts, which also make the watch easier. Bezel is a “sandwich” of three layers – polyurethane, carbon, polyurethane. Buttons no longer need external protection, so they look more aesthetically pleasing and modern. The back cover consists of two parts – fiberglass and steel for greater reliability during mechanical stress. The quad-sensor [barometer / altimeter, thermometer, digital compass and pedometer] will become a reliable assistant even in the most severe environmental conditions. Thanks to Bluetooth synchronization, you can not only adjust the time in automatic mode and configure the clock functions, but also record the motion path along with the steps taken, record the points passed on the map in the G-Shock Connected application and calculate the calories burned taking into account the steps taken and the height, which has been overcome. The basic features remained unchanged – world time for 300 cities [in synchronization mode], stopwatch for 24 hours, timer, alarms, calendar.
Enjoy Japanese Unique Features in GG-B100!
Carbon Core Guard structure. This new shock resistant structure protects modules with a carbon fiber reinforced resin case.
Mud resistant structure (dust and mud resistant). Highly airtight carbon case and filter protects against intrusion of mud.
Dual layered case back.
Carbon fiber inserted bezel. A triple layered structure with a carbon fiber sheet inserted between fine resin.
Super Illuminator. (high brightness LED)
G-SHOCK Connected FREE Smartphone App. Main Functions
– Mission Log function
The altitude measured by the watch and the course obtained from a smartphone’s GPS are automatically recorded to an app. An altitude point can be manually acquired and plotted on the map.
– Location Indicator
Record your current location in an app. Display shows your recorded destination by the second hand, and the distance on the LCD.
– Calorie calculator
– Mode/display switching customization
– Automatic time adjustment*
– World Time for over 300 cities*
– Phone Finder
SMARTPHONE LINK. Links with a smartphone for more accurate timekeeping and access to a host of mobile link functions.
Shock Resistant. Shock-resistant construction protects against impact and vibration.
General Information
| Price | $320 *average Amazon Price, we may earn commission from purchases |
| Year of first Release | 2019 |
| Suitable for Wrist Size | 180 – 250 mm |
| Module Number | 5594 / Manual |
| Model Range | 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.) |
| Battery Type | CR2025 (G-Shock Batteries) Buy Battery on Amazon → |
| Other Divisions the GG-B100 belongs to: *you may find all watches of the division by clicking on the link | G-Shock Ana Digi G-Shock Carbon Core Guard G-Shock StepCount G-Shock Bluetooth G-Shock Compass G-Shock Barometer and Altimeter G-Shock Solar |
Official GG-B100 Video
G-Shock GG-B100 Display Guide *for key functions only. For you to know how it works))
Digital Compass Mode
Use this mode to take direction and bearing angle readings.
Altimeter Mode
Use this mode to take an altitude reading for your current location.
Barometer Mode
Use this mode to take barometric pressure readings at your current location.
Thermometer Mode
Use this mode to take temperature readings at your current location.
G-Shock GG-B100 on the wrist!
Famous people wearing G-Shock GG-B100!
Have you seen this watch with another person? Let us know!
GG-B100 Usage Patterns *what the watch is usually meant for
Feedback from Users *accumulated information from our own comments and emails, forum threads, socials, reviews, etc.
PROs
+ great looking
+ bluetooth
+ light on the wrist
+ extremely comfortable
+ G SHOCK Connected App
+ barometer
+ mission log and location indicator
+ fit, look, feel, everything
+ great looking watch, really beautiful stands on wrist
CONs
– can’t get any accessories for it
– 2 years per battery
– the thermometer is not that precise
– not tough solar
– hope they will make a smaller version with tough solar for small wristers
Feedback from Experts *based on comparison info with similar watches by price, model range, etc.
PROs
+ hourly Time Signal
+ perfect accuracy. Bluetooth (via phone app)
+ Smart Features via G-Shock Connected App
+ 38 time zones world time
+ carbon (Carbon Core Guard) material
+ altimeter
+ barometer
+ compass
+ step Tracker
+ sunrise Sunset
CONs
– only 2 years battery
– not so small 55.4×53.1×19.3 mm
GG-B100 Limited Editions *unique style, materials, and price
The Listing of All G-Shock GG-B100 Limited Watches → *with detailed description about the style
What we like in GG-B100 *comments by experts with 10 years experience in writing about Casio watches
— 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 G-Shock GG Watches *similar by price and functions but different by cases
Official Casio Description. From the MASTER OF G Series MUDMASTER, the watch that is designed and engineered to withstand rough land environments, come carbon resin models that incorporate a new type of structure.
The case is made of high-rigidity carbon material to protect against damage and deformation due to impact and other rough treatment, while metal button pipes ensure a tighter seal against the external environment. A filter further protects against the invasion of mud, for the high level of dust and mud resistance required when in severe environments. In addition, the dual back cover consists of a stainless steel panel back and an outer cover made of shock resistant fine resin embedded with glass fibers.
The bezel is formed of three layers of fine resin with carbon fiber inserts. The top layer is transparent, resulting in a bezel that shows the embedded carbon material.
Official GG-B100 Specs / Features *for base version GG-B100-1A3
- Case / bezel material: Carbon / Resin
- Resin Band
- Neobrite
- Mineral Glass
- Carbon Core Guard structure
- Mud Resistant
- Shock Resistant
- Spherical Glass
- 200-meter water resistance
- Double LED light
LED light for the face (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
LED backlight for the digital display (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) - Mobile link (Wireless linking using Bluetooth®)
- Digital compass
Measures and displays direction as one of 16 points
Measuring range: 0 to 359°
Measuring unit: 1°
60 seconds continuous measurement
Hand indication of north
Magnetic declination correction
Direction calibration (2-point calibration, figure eight calibration, auto calibration) - Altimeter
Measuring range: –700 to 10,000 m (–2,300 to 32,800 ft.)
Measuring unit: 1 m (5 ft.)
Hand indication graph of altitude differential
Manual memory measurements (up to 14 records, each including altitude, date, time)
Auto log data (High/low altitudes, cumulative ascent and descent)
Others: Relative altitude readings (±100 m /±1000 m), selectable measurement interval: 5 seconds or 2 minutes (1 second for first 3 minutes only)
*Changeover between meters (m) and feet (ft) - Barometer
Measuring range: 260 to 1,100 hPa (7.65 to 32.45 inHg)
Measuring unit: 1 hPa (0.05 inHg)
Hand indication of pressure differential (±10 hPa)
Atmospheric pressure tendency graph (last 20 hours or last 56 hours)
Barometric pressure tendency information alarm (beep and arrow indicates significant changes in pressure)
The atmospheric pressure tendency graph can show the last 20 minutes or last 56 minutes of measurements. The hand indication of pressure differential shows values in units of ±1 hPa.
*Changeover between hPa and inHg - Thermometer
Measuring range: –10 to 60°C (14 to 140°F)
Measuring unit: 0.1°C (0.2°F)
*Changeover between Celsius (°C) and Fahrenheit (°F) - Step count using a 3-axis acceleration sensor: 0 to 999,999 step count display range
Power Saving: Auto sensor sleep state entry after fixed period of non-activity - World time
38 time zones (38 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping - Sunrise, sunset time display
Sunrise time and sunset time for specific date - 1/100-second stopwatch
00’00”00~59’59”99 (for the first 60 minutes)
1:00’00~23:59’59 (after 60 minutes)
Measuring unit:
1/100 second (for the first 60 minutes)
1 second (after 60 minutes)
Measuring modes: Elapsed time, split time, 1st-2nd place times - Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (1-minute increments and 1-hour increments) - 5 daily alarms
- Hourly time signal
- Hand shift feature
- Full auto-calendar (to year 2099)
- 12/24-hour format
- Button operation tone on/off
- Regular timekeeping
Analog: 3 hands (hour, minute (hand moves every 10 seconds), second)
Digital: Hour, minute, second, am/pm, month, date, day - Accuracy: ±15 seconds per month (with no mobile link function)
- Approx. battery life: 2 years on CR2025
- Size of case : 55.4×53.1×19.3mm
- Total weight : 92g
GG-B100 Comparison Table with similar G-Shock Watches
GG-B100 | |||
Price (Amazon) | |||
Year of first Release | 2019 | 2017 | 2016 |
Accuracy | Bluetooth (via phone app) | Radio-controlled (via atomic watch signals) | ±15 seconds per month |
SmartWatch Features | G-Shock Connected App (simplifies certain watch operations by letting you perform them on your phone screen) | No | No |
Light | Neobrite (hands and hour markers) Double LED light | Neobrite (hands and hour markers) Double LED light | Neobrite (hands and hour markers) and LED light (Super Illuminator) |
Alarm | 5 daily alarms | 5 daily alarms | 5 daily alarms (with 1 snooze alarm) |
Timer | Measuring unit: 1 second | Measuring unit: 1 second | Measuring unit: 1 second |
Stopwatch | 1/100-second stopwatch | 1/100-second stopwatch | 1/100-second stopwatch |
Hourly Time Signal | Yes | Yes | Yes |
World Time | 38 time zones (38 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping | 31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping | 31 time zones (48 cities + coordinated universal time), daylight saving on/off |
Altimeter | Yes | No | No |
Barometer | Yes | No | No |
Compass | Yes | No | Yes |
Second Hand | Yes | No | Yes |
Step Tracker | Yes | No | No |
Sunrise Sunset | Yes | No | No |
Thermometer | Yes | No | Yes |
Case / bezel material | Carbon (Carbon Core Guard) | Resin / Stainless steel | Resin / Stainless steel |
Glass | Mineral (Spherical Glass) | Mineral glass | Mineral glass |
Battery | 2 years on CR2025 | Solar powered CTL920 | 2 years on SR927W |
Size (mm) *we consider 48.9×42.8×13.4 to be a traditional watch size (as in DW-5600). So you are to compare how far or close the watch is to this size | 55.4×53.1×19.3 | 56.2×54.9×17.3 | 56.2×55.3×17.3 |
Full features (if you want to know more) |
GG-B100 Replacement Band (Strap) *availability
We think it is very important (before buying a new watch) to know if there will be some choice as for replacement bands for GG-B100 (in future or even now). So we made a research and you shouldn’t worry about your future as the bands are available for buying.
starting from 110$ on eBay →
starting from 68$ on PacParts →
Recent News about GG-B100
- [G-SHOCK 2023] GG-B100Y-1A and GW-9400Y-1 for Extreme Environments
- [G-SHOCK Comparison] GWG-2000 VS GG-B100 VS GWG-1000
- [G-SHOCK 2023] GW-9400YJ-1 and GG-B100Y-1A in Emergency Colors
- GG-B100 and Japanese approaches to Tough and Functional Watches
- [G-Shock Mudmaster] GG-B100 — Made for Extreme Environments
You ask, we answer…
It helps to ensure that nothing gets into the watch when down and dirty work takes you deep into the dirt and sludge.
It measures and displays direction as one of 16 points.
It is a built-in 3-axis acceleration sensor that begins counting steps the moment you start to walk.
The electronic mechanism that “estimates” the altitude based on the air pressure.
Not sure about GG-B100? There are more G-Shocks!
