Introducing the G-Shock GRB300EC-1A Gravitymaster — where the sky’s the limit! This rugged aviation-inspired watch from the G-SHOCK MASTER of G line features a Carbon Core Guard for superior shock-resistance and durability, akin to aircraft fuselage materials. Its carbon fibre-reinforced resin case and sleek bezel design echo next-gen aircraft for a bold and robust look. Experience the world through a pilot’s eyes with flight log memory and dual time display for two time zones. Easily switch between home and local time via the app for seamless international travel. Designed with large index marks and a metal bezel for clear visibility, it's ideal for pilots who require intuitive timekeeping. The rotary disc indicator at 9 o’clock smoothly manages alarm, stopwatch, and battery level. With a high-contrast black and white design accented with vibrant touches, it resembles a cockpit instrument panel. Dark colour options emphasize its practical aviation functionality. Plus, bio-based resin components enhance sustainability in the GRB300EC-1A. Discover the ultimate blend of precision and durability in the GRAVITYMASTER GR-B300! - 59 × 54.7 × 15.7mm Case Size - 71g Weight - Carbon/Bio-based resin Case and Bezel - Bio-based resin band - Shock Resistant - Carbon Core Guard structure - 200 Meters Water Resistant - Bluetooth: Syncs with smartphone for automatic time adjustment. - Tough Solar (Solar powered) - Smartphone Link feature: Mobile link (Wireless linking using Bluetooth®) - Auto time adjustment - Approximately 300 world time cities - Flight log - Phone finder - Mineral Glass - Screw Lock Crown - World time: Dual time (Home City time swapping) - Stopwatch - Timer - Daily alarm - LED Light: White - Calendar: Full auto-calendar (to year 2099) - Power Saving (hands stop to save power when the watch is left in the dark) - Approx. battery operating time: *5 months on rechargeable battery *18 months on rechargeable battery - Accuracy: ±15 seconds per month (with no mobile link function)