If Switzerland was a high school cafeteria, Rolex would be the king of the cool kids’ table. The Crown still sets the tone for the watch industry at large. Case in point: the rainbow-hued ...

A sprinkling of rainbow-coloured luxury timepieces have come to market over the past decade, with Rolex making Daytona models with colourful sapphire bezels in 2012, and Hublot and Chopard not far ...