The Orient RA-BC0004Y (also referenced as RA-BC0004Y30B / RA-BC0004Y30) is an adventure-ready, high-performance Japanese automatic GMT diver-design timepiece from Orient’s prestigious Sports Mako Collection. Celebrated among horology purists, international travelers, and sports watch collectors by its iconic series nicknames—the "Mako GMT", "Yellow Mako GMT", or "Amber Mako GMT"—this 42.8mm timepiece elevates Orient’s legendary marine heritage with an authentic mechanical dual-time travel complication. It pairs a solid stainless steel case with an eye-catching sunray orange dial (with warm golden/amber undertones), high-visibility luminous geometric indices, an independent 24-hour dual-time GMT hand, a rotating 24-hour GMT bezel, a framed date calendar window at 3 o'clock, an in-house Japanese automatic mechanical movement, a premium scratch-resistant sapphire crystal, a certified 200-meter water resistance rating, and a solid stainless steel construction. Designed for modern adventurers and mechanical watch enthusiasts seeking genuine automatic horology, robust diver utility, and multi-timezone capability, it transitions effortlessly from ocean expeditions to stylish everyday wear. The defining visual highlight of this RA-BC0004Y reference is its radiant sunray orange dial face, framed by an external bi-directional rotating 24-hour bezel that allows instantaneous tracking of multiple time zones simultaneously. Set beneath a premium flat scratch-resistant sapphire crystal, the dial features bold geometric hour markers generously coated with Orient’s luminous compound for immediate legibility in deep water or total darkness. A prominent central arrow GMT hand sweeps smoothly across the dial, providing an intuitive 24-hour time reference against the bezel and outer chapter ring. The harmonic contrast between the brilliant orange dial, high-contrast GMT accent hand, polished silver-tone markers, and brushed stainless steel casing delivers a bold, sporty, and commanding presence on the wrist. Beneath its rugged exterior, the watch is powered by Orient’s dedicated in-house Japanese automatic mechanical GMT movement. Built with traditional self-winding mechanical architecture, the movement is equipped with manual hand-winding and second-hand hacking (stop-seconds) functionality for down-to-the-second time synchronization. Operating at 21,600 vibrations per hour (3 Hz) across 24 jewels, this mechanical engine features an independently adjustable 24-hour GMT hand and a quickset date calendar, delivering a dependable 40+ hour power reserve powered entirely by natural wrist movement or manual winding. The case features classic sports diver proportions, measuring 42.8mm in case width with a rugged profile thickness and an ergonomic lug-to-lug distance of 48.5mm (22mm lug width), ensuring a balanced, secure fit across diverse wrist sizes. Dial protection and optical clarity are provided by a flat, scratch-resistant sapphire crystal. Engineered for aquatic excursions and demanding outdoor use, the solid stainless steel case incorporates a solid screw-down crown with protective crown guards and a solid screw-down caseback, achieving a certified 200-meter (20 bar / 660 ft) water resistance rating suitable for swimming, snorkeling, and high-impact water sports. The timepiece comes completed on an integrated multi-link solid stainless steel construction, secured by a solid fold-over deployment clasp with a push-button release and safety lock mechanism.

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• 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
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• 14-Day Return & Refund Policy from the date of delivery – see our Refund Policy for full details