

PRODUCT DETAILS
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. Quad Sensor capabilities use compact sensors that make it possible to pack compass, altitude/barometer, and temperature measurements, along with an accelerometer that keeps track of your step count, into a compact configuration. This provides the outdoor adventurer with the means to keep track of the surrounding environment while on the go.
A special G-SHOCK app, which simplifies configuration of watch settings, also includes a new Mission Function. The app automatically records altitude data measured by the watch and route information acquired by a smartphone's GPS. Manually obtained altitude points can be plotted on your route. Altitude measurement and the step count are used to perform consumed calorie calculations that take up and down grades into consideration, and to record the results in an activity log.
A watch button operation can be used to record your current location with the app. Then the second hand indicates the bearing to the recorded location, while the digital display shows the distance to the location. These new models also support Mode Switching Customization. You can use the app to enable or disable modes individually so only enabled modes appear. You can even specify the sequence to be used when displaying the modes.
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
SHIPPING & RETURNS
DELIVERY
- We aim to dispatch all in-stock items from our warehouse within 2-5 business days. An email will be sent to you which will include all your tracking information once your order has been handed over to our courier partner.
- If an item is out of stock, we will email you as soon as possible to arrange a full refund or exchange.
- FREE shipping for all orders to any South African address.
- International delivery to Zimbabwe, Namibia and Botswana is available for some brands. Please contact us for a shipping quote.
- Easy 7 days returns and exchanges
RETURNS
If you do not like the product you can return it within 7 days, assuming the item is not worn, scratched or damaged in any way, and includes all the original packaging.
Please contact us for any returns or exchanges
WATER RESISTANCE
Please check the marking on the back of your watch case and refer to the following table to confirm
the degree of water resistance of your Seiko watch and the preferable conditions of use.
A watch’s water resistance is not permanently guaranteed. It is affected by the ageing of gaskets or deformation of watch parts due to accidental shock. To preserve a watch’s water resistance as long as possible, please follow the precautions below:
- Wipe off moisture, sweat or dirt with a soft dry cloth after removing it from the wrist in order to increase the durability of the case back, gaskets and band.
- After using a water resistant watch in ocean water, wash it in fresh water and dry it with a soft cloth.
- Do not wash a water resistant watch while the crown is pulled out.
- Do not operate the crown or press a button when the watch is wet.
- A periodic overhaul service is recommended to check the water resistance of the watch regularly to ensure it’s functionality.
〇:OK, ✕:Not OK
Type of water resistance | For saturation diving | For scuba diving | Enhanced water resistance for | Water resistance for | Non-water resistance | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Water resistance | Professional Diver's Watch | Diver's watch | 20 | 10 | 5 | 3 | ||||||||
Usage example | Accidental splashes and Contact with rain | 〇 | 〇 | 〇 | 〇 | 〇 | 〇 | × | ||||||
Swimming, Yachting, | 〇 | 〇 | 〇 | 〇 | 〇 | × | × | |||||||
Skin diving | 〇 | 〇 | 〇 | 〇 | × | × | × | |||||||
Scuba diving | 〇 | 〇 | × | × | × | × | × | |||||||
Saturation Diving | 〇 | × | × | × | × | × | × |
REVIEWS
CASIO G-SHOCK MENS 200M QUAD SENSOR MUDMASTER - GG-B100-1A3DR
WHY BUY FROM US?
- AUTHORISED ONLINE DEALERThe Watch Boutique is an authorised online stockist for all brands. This includes a full international warranty.
- FREE AND FAST DELIVERYShipping is free for all orders in South Africa. We dispatch all orders within 2-5 business days.
- SECURE PAYMENT OPTIONSIncluding Buy Now, Pay Later plans with PayFlex and Pay Just Now.
- AFTER-SALES SERVICEWe have a full on-site watch repair workshop to take care of all after-sales needs.