The power and beauty of nature encased in rugged shock-resistant construction. Introducing the very special “Magma Gold”  MUDMASTER, from the flagship line of the celebrated MASTER OF G.

Thanks to a high-precision forged metal shield outer shell and Carbon Core Guard structure, the smaller profile GWG-B1000MG ensures outstanding durability as well as a comfortable fit. Combining the lightness of carbon fiber-reinforced resin with the toughness of metal, this design delivers reliable performance capable of withstanding extreme environments.

The indexes and watch hands project intense red and orange hues inspired by the crimson orange of flowing magma and landscapes that turn golden yellow as magma solidifies. Metal components finished with ion-plating in multiple shades of gold highlight the structural beauty of layered golden hues. Garal color molding combines resin in different colors to create marbled patterns on the band, evoking the Earth’s majestic layers. 

Made with bio-based resin, the case exudes strength and solidity, while honoring the MUDMASTER commitment to the environment. Magma Gold embodies “beauty in toughness,” a stunning and rugged watch that endures the harshest environments.

Radio-controlled and solar-powered, the watch is also equipped with Triple Sensor to keep you updated with direction, altitude, barometric pressure, and temperature readings. Double LED lights and sapphire crystal ensure reliable readability so you always see the time and other readings, no matter what the conditions are like.

Input a specific location in the app and the Location Indicator function moves the indicator hand at the 3 o’clock position to point in that direction so you stay on track at all times — even when visibility is obstructed by extreme conditions like sandstorms.

• Case / bezel material: Bio-based Carbon / Stainless steel
  
• Gold ion plated bezel
  
• Bio-based resin band
  
• Neobrite
  
• Sapphire crystal with anti-reflective coating
  
• DLC Coating bezel
  
• Mud Resistant
  
• Shock Resistant
  
• Vibration resistant
  
• Screw Lock Crown
  
• Carbon Core Guard structure
  
• 200-meter water resistance
  
• Tough Solar (Solar powered)
  
• 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)
  
• LED:White
  
• Bluetooth: Connects to a smartphone and automatically adjusts the time
  
• Mobile link (Wireless linking using Bluetooth®)
  
• Radio-controlled Watch; Multi band 6
  
• Time calibration signal reception
  
• Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful)
  
• *5 times a day for the Chinese calibration signal
  
• Manual receive
  
• The latest signal reception results
  
• 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
  
• 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 meters (m) and feet (ft)
  
• Barometric pressure measurement function 
  (measurement range: 260~1,100hPa (7.65~32.45inHg), 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
  
• 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.
  
• Temperature measurement function
  (measurement range: -10 to 60 °C (14 °F to 140 °F), 0.1 °C (0.2 °F)) 
  *Changeover between Celsius (℃) and Fahrenheit (℉)
  
• 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
  1/100-second stopwatch
  
• Measuring capacity: 23:59'59.99''
  
• Measuring modes: Elapsed time, split time, 1st-2nd place times
  
• Countdown timer
  
• Measuring unit: 1 second
  
• Countdown range: 60 minutes
  
• Countdown start time setting range: 1 minute to 60 minutes (1-minute increments)
  
• Sunrise, sunset time display
  
• Sunrise time and sunset time for specific date
  
• 5 daily alarms
  
• Hourly time signal
  
• Battery level indicator
  
• Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)
  
• The auto hand home position correction
  
• Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
  
• 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)
  
• 2 dials
  
• Digital: Hour, minute, second, am/pm, month, date, day
  
• Accuracy: ±15 seconds per month (with no signal calibration and mobile link function)
  
• 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)
  
• Size of case : 58.7 × 52.1 × 16.2 mm
  
• Total weight : 114 g