GRAVITYMASTER

GRB200-1B

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, MASTER of G specialty watches take 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 GR-B200, 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.

Technology / Design

Thermometer

Altimeter / Barometer

Digital Compass

Step Counter

Super Illuminator

 

G-SHOCK Connected

Smartphone App (Android & iPhone)

* App screens shown here may differ from actual screens, since the app is currently under development.


– Automatic time adjustment*

– World Time for over 300 cities*

– Alarm/Timer setting

– Phone Finder


* Updating of internal data according to the latest time zone/ daylight saving time information

* The Bluetooth® wordmark and logo are registered trademarks of Bluetooth SIG, Inc. and any use of these marks by Casio Computer Co., Ltd. is under license.

* Apple, Apple logo and iPhone are trademark of Apple Inc. registered in the United States and other countries. App Store is a service mark of Apple Inc.

* IOS is a trademark or registered trademark of Cisco Systems, Inc. registered in the U.S.

* Google Play and the Google Play logo are trademarks of Google Inc.

* All other company and product names are trademarks or registered trademarks of their respective owners.

List of Countries and Geographic Areas where Product Conforms to Radio Laws or Has Been Approved.

SMARTPHONE LINK

Links with a smartphone for more accurate timekeeping and access to a host of mobile link functions.

SHOCK RESISTANT

Shock-resistant construction protects against impact and vibration.

G-SHOCK CONNECTED APP

Connection with a phone requires installation of the G-SHOCK CONNECTED App on the phone.

  • Super Illuminator

    Double LED light

  • Digital compass

    Measures and displays direction as one of 16 points

  • Altimeter

    Measuring range: –700 to 10,000 m (–2,300 to 32,800 ft.)

  • Barometer

    Measuring range: 260 to 1,100 hPa (7.65 to 32.45 inHg)

  • Thermometer

    Measuring range: –10 to 60°C (14 to 140°F)

  • Step counter

    Using a 3-axis acceleration sensor: 0 to 999,999 step count display range

  • World Time

    38 time zones (38 cities + coordinated universal time)

  • Dual Time

    Simultaneous display of the current time in two different time zones

  • Daily Alarm, Hourly Time Signal

    5 daily alarms sounds each day at the time you set. The value indicates how many alarms are available. The hourly time signal causes the watch to beep every hour on the hour

  • Stopwatch (1/100 24HR)

    Accurate measurement of elapsed time with the touch of a button. The fraction indicates the unit of measurement, while the time figure indicates the maximum time measurement

  • Timer (24H)

    Counts down from a start time specified by you. The value indicates the number of timers available, while the time figure indicates the maximum starting time. “REPEAT” indicates Auto Repeat, which automatically restarts timing at the end of each countdown

  • Beeper Alarm

    Beeper tone alarm sounds at the time you set

  • Full Auto-Calendar

    Allowances are made automatically for months of different lengths, including leap year

  • 12/24-Hour Timekeeping

    Times can be displayed in either 12-hour or 24-hour format

  • Battery Level Indicator

    Indicator shows the current battery level

  • Water Resistant (20 BAR)

    The “BAR” value indicates the number of atmospheres to which water resistance is ensured. 20 BAR means water resistance to 20 atmospheres. Watches marked “200m” have the same water resistance as 20 BAR watches

  • Mineral Glass

    Hard glass resists scratching

  • Case

    Carbon material

  • Band

    Stainless Steel interchangeable. Includes resin & cloth band

  • Shock Resistant
  • Mineral Glass / Spherical Glass
  • Neobrite
  • Vibration resistant
  • 200-meter water resistance
  • Case / bezel material: Carbon
  • Resin Band
  • 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)
  • battery life: 2 years on CR2025
  • LED:White
  • Module: 5635
  • Size of case: 63×54.1×18.3mm
  • Total weight: 80g
  • UPC: 889232298320

Carbon Core Guard structure logo

Bluetooth<sup>™</sup> logo

Smartphone App

Get It On Google Play

Smartphone App

Download on the App Store

Operation Guide (HTML)

Module No. 5635

Operation Guide (PDF)
Quick Reference (PDF)
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