Rugged and ready for adventure, the G-Shock Mudmaster from H.S. Johnson is designed for environments filled with debris. Its durable carbon-reinforced case offers optimal shock resistance, while features like a compass, altimeter, and barometer ensure you stay on track in challenging conditions. With Bluetooth connectivity for easy time adjustments and a robust water resistance of up to 200 meters, this watch combines functionality with a bold aesthetic, perfect for those who demand performance and style.
From the brand: This model from the G-Shock Mudmaster Series is engineered for harsh environments filled with rubble, dirt, and debris, utilizing carbon materials for durability. Its carbon-reinforced case resists damage and deformation while maintaining excellent airtightness and shock resistance. Features include a mud-resistant filter, stainless steel case back, and a shock-absorbing resin back cover reinforced with glass fibers, providing superior protection against dust and mud. The bezel, crafted from three layers of fine resin with carbon fiber inserts, evokes the look of an off-road portable fuel can. Equipped with a compass, altimeter/barometer, thermometer, and pedometer, it also connects to the CASIO WATCHES app for precise time correction and offers a Mission Log feature that records altitude and route data, supporting precise decisions in demanding conditions.
We are a Casio UK authorised dealer
New boxed stock with full retail boxes & paperwork
Basic Information
Case size (L× W× H)
55.4 × 51.3 × 19.4 mm
Weight
92 g
Case and bezel material
Carbon / Resin
Band
Resin Band
Construction
Shock Resistant
Mud Resistant
Carbon Core Guard structure
Water resistance
200-metre water resistance
Time adjustment
Bluetooth: Connects to a smartphone and automatically adjusts the time
Power supply and battery life
Approx. battery life: 2 years on CR2025
Sensor feature
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
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 ±0.1 hPa.
*Changeover between hPa and inHg
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)
Thermometer
Measuring range: -10 to 60℃ (14 to 140℉)
Measuring unit: 0.1℃ (0.2℉)
*Changeover between Celsius (℃) and Fahrenheit (℉)
Smartphone Link/App Connectivity Features
Smartphone Link feature
Mobile link (Wireless linking using Bluetooth®)
Apps
CASIO WATCHES
App connectivity feature
Auto time adjustment
Easy watch setting
Approximately 300 world time cities
Life log data
Mission log
Location Indicator
Location Memory
Mode/Display switching customization
Auto altitude correction
Phone finder
Exterior
Glass
Mineral Glass
Spherical Glass
Other
Neobrite
Watch Features
World time
38 time zones (38 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping
Sunrise/sunset display
Sunrise, sunset time display
Sunrise time and sunset time for specific date
Stopwatch
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
Timer
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)
Alarm/hourly time signal
5 daily alarms
Hourly time signal
Light
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)
Light color
LED: White
Calendar
Full auto-calendar (to year 2099)
Mute feature
Button operation tone on/off
Accuracy
Accuracy: ±15 seconds per month (with no mobile link function)
Other features
12/24-hour format
Hand shift feature
Regular timekeeping:
Analog: 3 hands (hour, minute (hand moves every 10 seconds), second)
Digital: Hour, minute, second, am/pm, month, date, day
