G-SHOCK GRAVITYMASTER GR-B300H-5A

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  • Regular price $465.00



MASTER OF G - AIR
GRAVITYMASTER

GRB300H-5A

Expand your horizons with a MASTER OF G — designed for pros working in the toughest of environments. Take the first step in a journey of endless exploration with the MASTER IN HORIZON GOLD, inspired by the golden horizon where earth meets sky. This is one tough watch built to deliver with refined style and rugged performance. The design features a metal bezel finished in light yellow gold ion plating and key metal components accented with brown ion plating. Paired with a dark brown resin band, these timepieces project the awe-inspiring power of nature. The GR-B300H-5A employs a shock-resistant Carbon Core Guard structure with carbon fiber-reinforced resin case and seamless bezel design inspired by next-generation aircraft, coming together in a bold and powerful form. Dual-time instantly switches between the time back home and local time, a practical function to make traveling abroad that much smoother. The large, raised indexes and metal bezel accentuating the large watch face enhance the visibility and functionality so important for pilots, whose job demands intuitive reading of time. The rotary disc indicator at the 9 o’clock position is driven by a dual-coil motor to ensure smooth rotation and functional beauty, rotates to display alarm on/off status, serves as stopwatch, and also functions as a battery level indicator.

  • Case size (L× W× H)


    59 × 54.7 × 15.7 mm
  • Weight


    71 g
  • Case and bezel material

    Bio-based Carbon / Bio-based resin / Stainless steel
  • Band

    Bio-based resin band
  • Construction

    Shock Resistant
    Carbon Core Guard structure
  • Water resistance

    200-meter water resistance
  • Time adjustment

    Bluetooth: Connects to a smartphone and automatically adjusts the time
  • Power supply and battery life

    Tough Solar (Solar powered)
  • Smartphone Link feature

    Mobile link (Wireless linking using Bluetooth®)
  • Apps

    CASIO WATCHES
  • App connectivity feature

    Auto time adjustment
    Easy watch setting
    Approximately 300 world time cities
    Flight log
    Phone finder
  • Glass

    Mineral Glass
  • Crown

    Screw Lock Crown
  • Surface treatment

    Light yellow gold ion plated bezel
  • Compatible band size

    145 to 215 mm
  • Other

    Neobrite
  • World time

    Dual time (Home City time swapping)
  • Stopwatch

    1-second stopwatch Measuring capacity: 23:59'59. Measuring modes: Elapsed time, split time
  • Timer

    Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
  • Alarm/hourly time signal

    Daily alarm
  • Light

    LED light (Super Illuminator) Afterglow
  • Light color

    LED:White
  • Calendar

    Full auto-calendar (to year 2099)
  • Energy saving feature

    Power Saving (hands stop to save power when the watch is left in the dark)
  • Battery display/alert

    Battery level indicator
  • Run time

    Approx. battery operating time: 5 months on rechargeable battery (operation period with normal use without exposure to light after charge) 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
  • Accuracy

    Accuracy: ±15 seconds per month (with no mobile link function)
  • Other features

    Date display
    Day indicator
    Regular timekeeping: Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials (dual time hour and minute, dual time 24-hour, day)