G-SHOCK
MASTER OF G - SEA
GULFMASTER

Description

Introducing GULFMASTER, the new G-SHOCK Series that’s designed and engineered GULFMASTER includes the first G-SHOCK models to incorporate both Triple Sensor Version 3 and Smart Access in the same watch. In addition to barometric pressure, altitude, bearing, and temperature readings, the new models also feature Tide Graph and Moon Age capabilities to help keep you in close touch with your natural environment. Sudden extreme changes in barometric pressure are alerted using a dual hand, LCD display, and alarm. Double LED lighting illuminates the LCD, and also adds a face light at 6 o’clock to keep information bright and easy to read in total darkness.

The designs of these watches have been modeled after the look of shipboard instruments to create an attractive marine link. Large buttons are provided for critical operations to help make operation easier and more intuitive. All of this and so much more makes all of the models in the GULFMASTER Series the logical choice for the marine adventurer who desires something extra in performance and overall toughness.

• Smart Access
  An electronic crown switch and the use of multiple motors allow conflict-free operation of multiple functions, and smooth switching between functions.
  
• Tough Movement
  A CASIO-original thin analog movement made possible by hybrid mounting protects against damage and keeps you on time all the time.
  
• Tough Solar
  CASIO’s original solar-charging system combines a solar panel for generation of electricity even when exposed to just a slight amount of light and a secondary battery to keep power-hungry functions operating smoothly.
  
• Wave Ceptor
  Receives time calibration signals and corrects the time automatically.
  
• Triple Sensor Version 3
  Puts high-speed bearing, atmospheric pressure, and temperature measurement capabilities on your fingertips. All protected by GULFMASTER shock resistance, which is engineered to stand up to the harshest maritime conditions.
  
• Multi Band 6
  Allows reception of time calibration signals from one of six transmitters around the globe: The United Kingdom, The United States, China, and Japan (2 transmitters).
  

Specifications

• Case and bezel material: Resin / Stainless steel
• Band: Resin Band
• Water resistance: 200-meter water resistance
• Glass: Mineral Glass
• Light color: LED: White

• Shock resistant (G-SHOCK)
• Double LED light
  LED light for the face (Full auto LED light, selectable illumination duration, afterglow)
  LED backlight for the digital display (Full auto LED light, selectable illumination duration, afterglow)
• Solar powered
• 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
• The auto hand home positiion correction
• Digital compass
  Measures and displays direction as one of 16 points
  Measuring range: 0° to 359°
  Measuring unit: 1°
  60 seconds continuous measurement
  Hand direction of north
  Bidirectional calibration
  Magnetic declination correction
• Altimeter
  Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft.)
  Measuring unit: 1 m (5 ft.)
  Hand indication of altitude differential
  Manual memory measurements
  (up to 30 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
  Display range: 260 to 1,100 hPa (7.65 to 32.45 inHg)
  Display unit: 1 hPa (0.05 inHg)
  Hand Indication of pressure differential
  Atmophic pressure trendency graph
  Barometric pressure tendency information alarm (beep and arrow indicates significant changes in pressure)
  *Changeover between hPa and inHg
• Thermometer
  Display range: -10 to 60°C (14 to 140°F)
  Display unit: 0.1°C (0.2°F)
  *Changeover between Celsius(°C) and Fahrenheit(°F)
• Moon data
  Moon age of the specific date
• Tide graph
  Tide level for specific date and time
• World time
  29 time zones (29 cities + coordinated universal time), daylight saving on/off, 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)
• 5 daily alarms
• Hourly time signal
• Hand shift feature
  Manual or auto (during altitude, barometric pressure, and temperature measurement.
• Battery level indicator
• Power Saving
  display goes blank and hands stop to save power when the watch is left in the dark
• 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, date, day
• Accuracy: ±15 seconds per month (with no signal calibration)
• Approx. battery operating time:
  6 months on rechargeable battery (operation period with normal use without exposure to light after charge)
  23 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
• Size of case / total weight
  GWN-1000 ................ 44.9 × 55.8 × 16.0 mm / 101 g