Casio G-Shock GRB300H-5A GRAVITYMASTER Bluetooth Connected Solar Brown Watch

At a Glance

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 GRB300H-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.

Features

• Aviation Inspired
• Bluetooth Connectivity
• Carbon Core Guard Structure
• Tough Solar Powered
• Shock Resistant

Included with Purchase

• Casio G-Shock GRB300H-5A
• G-Shock Box
• Instruction Module
• 1 Year Casio International Warranty Card

Watch Features

• 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

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)

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

Smartphone Link – App Connectivity Features

• 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

Exterior

• Glass – Mineral Glass
• Crown – Screw Lock Crown
• Compatible Band Size – 145 to 215mm
• Other – Neobrite

Basic Information

• Time adjustment
• Bluetooth: Connects to a smartphone and automatically adjusts the time
• Bluetooth: Connects to a smartphone and automatically adjusts the time
• Tough Solar (Solar powered)

Construction

• Shock Resistant
• Carbon Core Guard structure
• Case and bezel material
• Carbon / Bio-based resin
• Band – Bio-based resin band
• Water resistance
• 200-meter water resistance

Case size (L× W× H) – 59 × 54.7 × 15.7 mm
Weight – 71g