Description
Description:
The GR-B300-1AJF marks the flagship next-generation MASTER OF G GRAVITYMASTER designed exclusively for aviation professionals facing extreme cockpit and field conditions. Sized 59.0 × 54.7 × 15.7 mm, weighing only 71 g, this timepiece features an innovative Carbon Core Guard structure combining bio-based carbon fiber-reinforced resin case, seamlessly fused with a bio-based urethane band. Aviation-inspired design elements—cockpit-coloration black-and-white with red accent indices, dimensional triple-layer dial, integrated metal bezel accentuating large index marks—deliver intuitive timekeeping legible under extreme lighting. Tough Solar + Bluetooth 4.0 (CASIO WATCHES app integration) enables automatic time synchronization, dual-time display (two time zones simultaneously), flight-log memory for recording current position and time on a mapped route, and smartphone-based world time configuration (300+ cities). A rotary disc indicator at the 9 o'clock position displays battery level, alarm on/off status, and stopwatch/timer modes via dual-coil motor. Sapphire crystal with anti-reflective coating, 20 ATM water resistance, and bio-based plastic components emphasize durability and environmental stewardship. Origin: Japan (JDM), Warranty: 1 year, JAN: 4549526373084, Released: May 2024.
Key Specifications:
- Case: 59.0 × 54.7 × 15.7 mm; Weight: 71 g
- Material: Bio-based carbon-fiber-reinforced resin case / bio-based resin bezel / stainless-steel/resin accents
- Band: Bio-based urethane with carbon-fiber insert, adjustable 145–215 mm
- Crystal: Sapphire glass with anti-reflective inside coating
- Water resistance: 20 ATM (200 m)
- Movement: Quartz calibre 5719, Tough Solar
- Battery life: Rechargeable solar (continuous operation in adequate light)
- Accuracy: ±15 s/month (with Bluetooth sync)
- Display: Fully analog dial (no LCD) with dimensional index marks, rotary disc indicator
- Functions: Dual-time (simultaneous two time zones), world time (300+ cities), flight-log memory (position/time recording via app), 1/100-second stopwatch (flyback feature), timer (1-minute units, max 24 hours), 5 alarms, hourly signal, perpetual calendar, 12/24-hour format, Super Illuminator LED
- Connectivity: Bluetooth 4.0 LE, CASIO WATCHES app (automatic time sync, flight-log, world-time config, phone finder)
- Illumination: LED (white), Super Illuminator, sapphire-enhanced low-light visibility
- Special: Carbon Core Guard structure, bio-based materials (eco-friendly), rotary dual-coil indicator, seamless design, titanium button components (in higher-tier variants), TRIPLE G-RESIST
- Origin: Japan (JDM)
- Warranty: 1 year
- JAN: 4549526373084
- Release date: May 2024
Key Highlights: The GR-B300-1AJF redefines aviation-focused G-SHOCK through breakthrough Carbon Core Guard engineering—delivering aircraft-grade shock resistance combined with a featherweight 71 g profile. The analog-only dial with dimensional index marks and cockpit-inspired coloration (black-and-white with red accents) prioritizes instant legibility under intense light and darkness. Bluetooth connectivity via CASIO WATCHES app enables flight-log memory (mapping departure/arrival coordinates), automatic time synchronization across 300+ global cities, and phone finder functionality—essential for international pilots and remote operations. The rotary disc indicator at 9 o'clock elegantly manages battery-level, alarm, and stopwatch/timer mode displays through dual-coil motor precision. Bio-based carbon-fiber resin construction and sapphire crystal demonstrate environmental commitment without compromising durability. Super Illuminator LED and anti-reflective sapphire ensure readable timekeeping in cockpit darkness or high-altitude glare. Ideal for professional aviators, military flight crews, expedition leaders, and collectors seeking cutting-edge aviation-inspired design merged with next-generation smart-watch integration in a lightweight tactical package.