Casio G-Shock MASTER OF G - LAND MUDMASTER Emergency Colours Series Bluetooth¶ôÇï¶ô¶÷ Multi Band 6 Triple Sensor Tough Solar Bio-Based Watch GWGB1000EC-1A GWG-B1000EC-1A

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 symbolizing toughness, with accents in vivid emergency colors 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 fiber-reinforced resin*1 and forged metals. Use the Location Indicator feature to see the direction of a target destination via an indicator hand on the watch.

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

Case / bezel material: Bio-based Carbon / Stainless steel
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
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
Tough Solar (Solar powered)
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)
25 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