Description We offer 100 % Authentic Watches,Original box,Manual,certificate of Authenticity card.Introducing a new basic G-SHOCK black MUDMASTER model for the MASTER OF G Series watches with special functions for use under extreme conditions on land. The extreme black and minimal coloring of this model helps to ensure that vital information is clear and easy to read, even under the harsh conditions encountered by rescue teams and others who work in extreme environments.G-SHOCK SOLAR MUDMASTER MASTER OF G GWG1000-1A1Specifications:Mud ResistantAtomic TimekeepingTriple SensorAltimeter, Barometer/Thermometer, Digital CompassReceives time calibration radio signals which keep the displayed time accurateAuto receive function (up to 6 times per day/up to 5 times per day for China)Manual receive functionSignal: US WWVB, UK MSF, Germany DCF77, Japan JJY40/JJY60, China BPCFrequency: US 60kHz, UK 60kHz, Germany 77.5kHz, Japan 40/60kHz, BPC 68.5kHzMud ResistantButtons use cylendar type guard structure with gaskets for sfts and cylinders to prevent mud and dust from getting into the watchVibration Resistant – Alpha Gel (R)Tough MovementAuto hand home position correctionSmart Access Electronic Crown w/Quick-lockFly-back FunctionHands move away from LCD screen during measurmentsTriple Sensor w/Direct Access ButtonAltimeterMeasuring range: -700 to 10,000 m (-2,300 to 32,800 ft)Measuring unit: 1m (5ft)Hand indication of altitude differentialManual memory measurements: up to 30 records (each including altitude, date and time)Auto log data: High altitude, Low altitude, cumulative ascent, cumulative decentOthers: Relative altitude reading ( /-100m to /-1000M), selectable measurement interval (5-seconds or 2-minutes)Digital CompassMeasures and displays direction as one of 16 pointsMeasuring range: 0 to 359 degreesMeasuring unit: 1 degree60 seconds continuous measurementHand indication of NorthBidirectional calibrationMagnetic declination correctionBarometerDisplay range: 260 to 1,100 hPa (7.65 to 32.45 inHg)Display unit: 1 hPa (0.05 inHg)Hand indication of pressure differentialAtmospheric pressure tendency graphAtmospheric pressure tendency information alarm (beep and arrow indicates significant change in pressure)ThermometerDisplay range: -10 to 60 C (14 to 140 F)Display unit: 0.1 C (0.2 F)Double LED lightLED light for the face (Full Auto LED Light, selectable illumination duration, Afterglow)LED Backlight for the digital display (Full Auto LED light selectable illumtion duration, afterglow)Neo-brite Luminous Hands and MarkersWorld Time29 time zones (29 cities UTC), daylight saving on/off, home city/world time city swapping5 Daily AlarmsHourly Time Signal1/100 Second Stopwatch w/Direct AccessMeasuring capacity: (23:59’59.99”)Measuring modes: Elapsed time, split time, 1st-2nd place timesCountdown TimerMeasuring unit: 1 secondCountdown range: 60 minutesCountdown start time setting range: 1 second to 60 minutes (1-minute increments)Full Auto Calendar (Pre-programmed until the year 2099)12/24 Hour FormatsButton operation tone on/offAccuracy: ± 15 seconds per month (with no signal calibration)Storage Battery: Solar Rechargeable BatteryBattery Level IndicatorPower Saving Function (display goes blank and hands stop to save power when left in the dark)Approx. Battery Life: 6 months on a rechargeable battery (operation perio with normal use without exposure to light after charge)25 months on rechargeable battery (operation when stored in total darkness with the power save function on after full charge)Module 5463Size of case/total weightGWG1000 59.5 x 56.1 x 18.0mm / Customer satisfaction is always our priority 100% Satisfaction GUARANTEE!FAST & FREE SHIPPING in the continental USA when you buy today G-SHOCK Watches at ClaudiasJewelryInc.com