MUDMASTER

GWG-B1000EC-1A

From left: GW-9500MEC-1, GWG-B1000EC-1A, GR-B300EC-1A
LED light
Emergency colours accenting a black watch face
Back engraving
Digital compass display
Altimeter display
Barometer display
Thermometer display

Whatever you're doing, wherever you are — the G-SHOCK Master of G line has your back. Based on GRAVITYMASTER, MUDMASTER, and MUDMAN models that deliver peak performance in punishing conditions in the air and on land, this line features a black watch case symbolising toughness, with accents in vivid emergency colours that capture the world of professionals involved in rescue efforts and other critical missions. Employing a structure resistant to dust, mud, vibration, and shock, the MUDMASTER GWG-B1000EC delivers solar-powered timekeeping with Bluetooth® and radio control accuracy, Triple Sensor technology, and more. The powerful design ensures durability and a comfortable fit thanks to an inventive combination of materials that includes carbon fibre-reinforced resin and forged metals. Use the Location Indicator feature to see the direction of a target destination via an indicator hand on the watch. *Due to the characteristics of carbon fibre-reinforced resin, the pattern and colour tone that appears on the surface will vary model by model.

From left: GW-9500MEC-1, GWG-B1000EC-1A, GR-B300EC-1A
LED light
Emergency colours accenting a black watch face
Back engraving
Digital compass display
Altimeter display
Barometer display
Thermometer display

Features

Shock resistant
Resistant to mud
20 bar water resistant
Made in Japan
Stable solar power
Easy to operate via smartphone

Specifications

Case size (L× W× H)

58.7 × 52.1 × 16.2 mm
Weight

114 g
Case and bezel material

Bio-based Carbon / Stainless steel
Band

Bio-based resin band
Construction

Shock Resistant

Vibration resistant

Mud Resistant

Carbon Core Guard structure
Water resistance

200-metre water resistance
Time adjustment

Radio-controlled Watch; Multi band 6

Bluetooth: Connects to a smartphone and automatically adjusts the time
Power supply and battery life

Tough Solar (Solar powered)
Sensor feature

Compass function: 16 direction / direction angle (0 to 359°) measured, direction continuous measurement (60 seconds), north direction guideline function. Bearing memory function. Automatic horizontal, magnetic declination, and orientation correction function.

Barometric pressure measurement function (measurement range: 260 to 1,100hPa [7.65 to 32.45inHg], 1hPa [0.05inHg]), Barometric pressure trend graph display (past 20 hours displayed), pressure difference indicator (±10hPa) Barometric pressure trend information alarm (when a characteristic change in air pressure occurs, it will be notified by arrows and sound notification) The pressure trend graph can be changed to measurement every 30 minutes. That's for the last 5 hours. *Changeover between hPa and inHg

Altitude measurement function/relative altimeter (measurement range: -700 to 10,000 m [-2,300 to 32,800 ft], in units of 1 m [5 ft]) Advanced memory (up to 30 manual memories of measurement date, month, time, and altitude), Automatic recording data (highest/lowest altitude, auto accumulation (ascent/descending) memory) Altitude trend graph, altitude difference indicator (±100 m/ ±1,000 m) Measurement interval setting function (every 5 seconds / 2 minutes) *Every 1 second for the first 3 minutes only *Changeover between metres (m) and feet (ft)

Temperature measurement function (measurement range: -10 to 60°C (14°F to 140°F), 0.1°C (0.2°F)) *Changeover between Celsius (°C) and Fahrenheit (°F)

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

App information

Time & place

Mission log

Location Indicator

Location Memory

Mode/Display switching customisation

Auto altitude correction

Phone finder

Glass

Sapphire crystal with anti-reflective coating
Crown

Screw Lock Crown
Surface treatment

DLC Coating bezel
Compatible band size

145 to 215 mm
Other

Neobrite

World time

World time 38 time zones (55 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching, 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 Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times
Timer

Countdown timer Measuring unit: 1 second Countdown range: 60 minutes Countdown start time setting range: 1 minute to 60 minutes (1-minute increments)
Alarm/hourly time signal

5 daily alarms

Hourly time signal
Light

Double LED light LED light for the face (Full-auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Full-auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
Light colour

LED: White
Calendar

Full auto-calendar (to year 2099)
Mute feature

Button operation tone on/off
Hand home position correction feature

The auto hand home position correction
Energy saving feature

Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)
Battery display/alert

Battery level indicator
Run time

Approx. battery operating time: 6 months on rechargeable battery (operation period with normal use without exposure to light after charge) 24 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
Accuracy

Accuracy: ±15 seconds per month (with no signal calibration and mobile link function)
Other features

12/24-hour format

Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)

Regular timekeeping: Analogue: 3 hands (hour, minute (hand moves every 10 seconds), second), 2 dials Digital: Hour, minute, second, pm, month, date, day
Time adjustment details

Time Calibration Signals Station name: DCF77 (Mainflingen, Germany) Frequency: 77.5 kHz Station name: MSF (Anthorn, England) Frequency: 60.0 kHz Station name: WWVB (Fort Collins, United States) Frequency: 60.0 kHz Station name: JJY (Fukushima, Fukuoka/Saga, Japan) Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga) Station name: BPC (Shangqiu City, Henan Province, China) Frequency: 68.5 kHz

Time calibration signal reception Auto receive up to six* times a day (remaining auto receives cancelled as soon as one is successful) *5 times a day for the Chinese calibration signal Manual receive The latest signal reception results

FEATURES

Emergency colours accenting a black watch face

Vivid red, orange and yellow hues employed by rescue teams and other professionals are featured as accent colours. Their striking contrast against the powerful solid black design ensures readability while creating a look befitting professional gear.

*Image shows the GR-B300EC-1A.

Close-up of the dial of the Master of G Gravitymaster GR-B300EC-1A, in the background: a rescue helicopter in action

High-strength, high-performance design
MUDMASTER
GWG-B1000EC

Featuring a structure offering resistance to dust, mud, vibration and shock, the watch incorporates solar-powered timekeeping with Bluetooth® and radio control, Triple Sensor technology, and more. The powerful design ensuring durability and a comfortable fit employs inventive combinations of materials including carbon fibre-reinforced resin^*1 and forged metals. Use the Location Indicator feature to see the direction of a specified target destination pointed out with an indicator hand on the watch.

*1 Due to the characteristics of carbon fibre-reinforced resin, the pattern and colour tone that appears on the surface will vary model by model.

*Second image shows the GWG-B1000-1A.

Digital Compass

60-second continuous direction measurement. Includes auto horizontal compensation.

Barometer

Sudden atmospheric pressure change alarm.

Altimeter

Altitude measurement interval 1 sec.*
Measurement unit 1 m.

*Takes measurements every second for the first 3 minutes and every 5 seconds or 2 minutes thereafter (selectable).

Thermometer

Measures the temperature at the current location.*

The digital display shows the temperature

*When measuring the ambient temperature, be sure the watch is removed from the wrist to avoid interference from body temperature, perspiration (water droplets), direct sunlight and other external factors.

*Takes measurements every second for the first 3 minutes and every 5 seconds or 2 minutes thereafter (selectable).

DETAILS

Carbon Core Guard structure, both strong and light

A carbon fibre-reinforced resin case^*1 protects the module, making the most of the high degree of strength and outstanding durability delivered by the carbon material to achieve a size ensuring a comfortable fit.

*1 Due to the characteristics of carbon fibre-reinforced resin, the pattern and colour tone that appears on the surface will vary model by model.

*Image shows the GR-B300EC-1A.

Individual parts of the Casio G-Shock GWG-B1000-1A watch case

Mud-resistant structure to withstand use in the harshest conditions

GWG-B1000EC and GW-9500MEC

The buttons are protected by cylindrical stainless-steel parts, and the button shafts are equipped with gasket fittings to prevent contamination with mud and dust. The GWG-B1000EC features a crown with a screw-lock construction to ensure a water-tight seal.

*Image shows the GWG-B1000-1A.

Triple Sensor (digital compass, barometer/altimeter, and thermometer) senses natural changes

GWG-B1000EC and GW-9500MEC

*Image shows the GW-9500MEC-1.

The display of the GW-9500MEC-1 multifunction watch shows compass data, in the background: a prairie road

Attention to materials: Bio-based resin

Key resin components used in the case, bezel, band, and more are made with bio-based resin. Produced using renewable organic resources, the material is expected to help reduce environmental impact.

*Image is included for illustrative purposes only.

Solar-powered timekeeping with Bluetooth® connectivity and/or radio control for enhanced accuracy and reliability

GR-B300EC: Bluetooth®
GWG-B1000EC: Bluetooth® and Multiband 6 radio control
GW-9500MEC: Multiband 6 radio control

*Image shows the GR-B300EC-1A.

The Gravitymaster GR-B300EC-1A Bluetooth® watch in front of a smartphone with information about the watch on its display

The illuminated display of the digital-analogue GWG-B1000EC-1A wristwatch in the dark

Super Illuminator (high-brightness LED light) for maintaining watch readability in the dark

GR-B300EC: Dial
GWG-B1000EC: Dial and LCD (Full-auto light)
GW-9500MEC: LCD (Full-auto light)

*Image shows the GWG-B1000EC-1A.

Scratch-resistant, highly transparent sapphire crystal with an anti-reflective coating

GWG-B1000EC

A round sapphire crystal disc against a light grey background

*The colour tone of the listed products may differ from the actual product in some cases.

GWG-B1000EC-1A

Features

Specifications

Case size (L× W× H)

Weight

Case and bezel material

Band

Construction

Water resistance

Time adjustment

Power supply and battery life

Sensor feature

Smartphone Link feature

Apps

App connectivity feature

Glass

Crown

Surface treatment

Compatible band size

Other

World time

Sunrise/sunset display

Stopwatch

Timer

Alarm/hourly time signal

Light

Light colour

Calendar

Mute feature

Hand home position correction feature

Energy saving feature

Battery display/alert

Run time

Accuracy

Other features

Time adjustment details

Product comparison

FEATURES

DETAILS

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GWG-B1000EC-1A

Features

Specifications

Basic Information

Smartphone Link/App Connectivity Features

Exterior

Watch Features

Product comparison

FEATURES

DETAILS

Select a location