GR-B300H-5ADR This G-SHOCK MASTER OF G GRAVITYMASTER Horizon Gold model features a dark brown bio-based resin band with a bio-based carbon, bio-based resin, and stainless steel case, paired with a black analog dial, gold-tone indexes, and a light yellow-gold ion-plated bezel for a premium aviation-inspired look. Built with shock-resistant Carbon Core Guard construction, mineral glass, Neobrite, Tough Solar power, Bluetooth smartphone connectivity, a screw-lock crown, and 200-meter water resistance, it combines lightweight durability with practical travel-focused functionality. Confirmed functions include automatic time adjustment, dual time, world time for approximately 300 cities through the CASIO WATCHES app, flight log memory, a 1-second stopwatch, 24-hour countdown timer, daily alarm, phone finder, full auto-calendar, battery level indicator, power saving, and Super Illuminator LED lighting, making it a highly capable choice for travel, aviation-inspired use, and active everyday wear.