Casio G-Shock Gravitymaster GR-B300-8A2 Black Dial 55mm Bio-Based Resin Men's Watch
Casio G-Shock Gravitymaster GR-B300-8A2 Black Dial 55mm Bio-Based Resin Men's Watch
Watch Description
Watch Description
The Casio G-Shock GR-B300-8A2 is a professional-grade aviation timepiece from the "Master of G" Air series, released in May 2024. Its design is inspired by the organic, flowing lines of next-generation aircraft and fighter jets, featuring a seamless exterior that connects the case to the band for a cutting-edge look. This model utilizes a Carbon Core Guard structure with a carbon fiber-reinforced resin case, a material also found in aircraft fuselages, providing extreme shock resistance, rigidity, and corrosion resistance.The watch is equipped with a high-contrast 3D face design for intuitive reading, featuring a triple-layer dial with a rotary disc indicator at the 9 o'clock position. This indicator is driven by a dual-coil motor to smoothly display battery levels, alarm status, and stopwatch modes. For pilots and frequent travelers, it offers Dual Time to display two time zones simultaneously and a specialized Flight Log function to record coordinates and routes via the CASIO WATCHES app. True to G-Shock’s sustainability efforts, the case, bezel, and band are crafted from bio-based resin.
Shipping and Returns
Shipping and Returns
- All Watches Ship from the UAE
- Express Shipping Available across the UAE and worldwide via trusted couriers like FedEx, DHL, or Aramex (selected at our discretion)
- UAE Orders: Delivered within 1 business day
- International Orders: Typically delivered within 2–5 business days after being processed
- Customs / Duties: Customers are responsible for any import duties or taxes charged by their local customs authority. These fees are based on the declared value and must be paid at delivery.
- 14-Day Return & Refund Policy from the date of delivery – see our Refund Policy for full details

WHY TRUST MONAWATCH ?
35+ Years of Experience
Trusted Watch Dealer in the UAE market since 1989
80,000+ Watches Sold Nationwide (Online)
Delivered across the UAE through our own website and top platforms like Amazon and Noon
3000+ Watches Sold Internationally
Shipped globally to satisfied customers around the world