Rolex’s ‘GMT-Master’ was developed in the 1950s for long-haul pilots, introducing a practical way to track multiple time zones at a glance. Produced in 1987 and selected by Stephanie Windsor, this reference is distinguished by its ‘Root Beer’ dial and bezel, set within a 40mm Oyster case in stainless steel and 18-karat yellow gold. It’s powered by an automatic movement and features the signature GMT hand, complete with the house's box.