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Casio G-Shock GRB200-1B GRAVITYMASTER Bluetooth Connected Quad Sensor Black


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  • 30 day returns
  • Free shipping
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  • 6-month warranty

At a Glance

Start with strong, lightweight carbon fiber, then add rugged style in a handsome black and gray color scheme. Now you?re ready for anything.

Designed for pros working in tough environments, this Bluetooth Quad Sensor GRAVITYMASTER takes advantage of carbon fiber?s exceptional strength-to-weight ratio to take timekeeping to entirely new heights. The bezel, made from carbon fiber inserts pressed between layers of resin, delivers outstanding toughness and practicality. And you can count on the exceptional functionality everyone expects from a G-SHOCK watch. Take to the skies with the GRAVITYMASTER GRB200-1B, boasting an innovative design for pilots who challenge the most extreme conditions high in the sky, presented in an all-black color scheme that stands for serious strength.


* Quad Sensor
* Bluetooth Connectivity
* Carbon Core Guard Structure
* Shock Resistant

Included with Purchase

* Casio G-Shock GRB200-1B
* G-Shock Outer Box
* G-Shock Inner Tin
* Instruction Module
* 1 Year Casio International Warranty Card


* Case / bezel material: Carbon
* Resin Band
* Neobrite
* Vibration resistant
* Shock Resistant
* Mineral Glass / Spherical Glass
* 200-meter water resistance
* Double LED light
* LED light for the face (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
* LED backlight for the digital display (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
* Mobile link (Wireless linking using Bluetooth®)
* Digital compass
* Measures and displays direction as one of 16 points
* Measuring range: 0 to 359°
* Measuring unit: 1°
* 60 seconds continuous measurement
* Hand indication of north
* Magnetic declination correction
* Direction calibration (2-point calibration, figure eight calibration, auto calibration)
* Altimeter
* Measuring range: ?700 to 10,000 m (?2,300 to 32,800 ft.)
* Measuring unit: 1 m (5 ft.)
* Hand indication graph of altitude differential
* Manual memory measurements (up to 14 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
* Measuring range: 260 to 1,100 hPa (7.65 to 32.45 inHg)
* Measuring unit: 1 hPa (0.05 inHg)
* Hand indication of pressure differential (±10 hPa)
* Atmospheric pressure tendency graph (last 20 hours or last 56 hours)
* Barometric pressure tendency information alarm (beep and arrow indicates significant changes in pressure)
* The atmospheric pressure tendency graph can show the last 20 minutes or last 56 minutes of measurements.
* The hand indication of pressure differential shows values in units of ±1 hPa.
* *Changeover between hPa and inHg
* Thermometer
* Measuring range: ?10 to 60°C (14 to 140°F)
* Measuring unit: 0.1°C (0.2°F)
* *Changeover between Celsius (°C) and Fahrenheit (°F)
* Step count using a 3-axis acceleration sensor: 0 to 999,999 step count display range
* Power Saving: Auto sensor sleep state entry after fixed period of non-activity
* World time
* 38 time zones (38 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping
* Sunrise, sunset time display
* Sunrise time and sunset time for specific date
* 1/100-second stopwatch
* 00'00"00~59'59"99 (for the first 60 minutes)
* 1:00'00~23:59'59 (after 60 minutes)
* Measuring unit:
* 1/100 second (for the first 60 minutes)
* 1 second (after 60 minutes)
* Measuring modes: Elapsed time, split time, 1st-2nd place times
* Countdown timer
* Measuring unit: 1 second
* Countdown range: 24 hours
* Countdown start time setting range: 1 second to 24 hours (1-minute increments and 1-hour increments)
* 5 daily alarms
* Hourly time signal
* Hand shift feature
* 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, month, date, day
* Accuracy: ±15 seconds per month (with no mobile link function)
* Approx. battery life: 2 years on CR2025
* Size of case : 63×54.1×18.3mm
* Total weight : 85g

Shock Resistant

Stable solar power

Keeps yourself in time

20 bar water resistant

Shock Resistant

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