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Inspired by the new generation of aircraft, the GR-B300H-5A combines carbon fibre, precision and high-performance design. Its robust yet sophisticated aesthetic incorporates essential functions for professionals and travellers, such as instant switching between local time and home time.
Under the MASTER IN HORIZON GOLD concept, the gold and brown finishes evoke the strength and beauty of nature, elevating the essence of G-SHOCK to a more exclusive and refined expression.
The main components of the case, bezel and strap are made from bio-based resin, a material that is expected to help reduce environmental impact.
Case and bezel material
Carbon/Bio-based resin
Strap-Bio-based resin strap
Shock Resistant
Carbon Core Guard structure
Water-resistant-Water-resistant to a depth of 20 bar
Bluetooth: Connects to smartphone and automatically sets the time
Power supply and battery life
Tough Solar (solar powered)
Smartphone Link Functions / Application Connectivity
Smartphone Link function
Mobile Link (Bluetooth® wireless link)
CASIO Apps-RELOJES
App Connectivity Function
Automatic time setting
Easy clock setting
World time for approximately 300 cities
Flight log
Phone finder
Glass-Mineral Glass
Crown-Crown with screw-down clasp
Compatible band size-From 145 to 215 mm
Neobrite
World Time-Dual time (local city time change)
Stopwatch-1-second stopwatch
Measurement Capability: 23:59'59.
Measurement Modes: Elapsed Time and Split Times
Timer-Countdown timer
Measuring unit: 1 second
Countdown interval: 24 hours
Countdown start time setting range: Between 1 minute and 24 hours (1 minute and 1 hour increments)
Alarm / time signal
Daily alarm
Illumination-LED light (super-illuminator)
Brightness
Light colour-LED: white
Calendar-Full automatic calendar (up to the year 2099)
Power saving function
Power saving (hands stop to save power when the watch is left in darkness)
Battery display / alert
Battery level indicator
Run time-Approximate battery run time:
5 months with rechargeable battery (operating period with normal use without exposure to light after charging).
18 months with rechargeable battery (operating period when stored in total darkness with power-saving function activated after full charge)
Accuracy-Accuracy: ±15 seconds per month (without Mobile Link function)
Date display
Normal time display:
Analogue: 3 hands (hour, minute (hand moves every 10 seconds) and second), 3 dials (dual time, 24-hour dual time and day).
