First commissioned in 1945 to celebrate the brand's 40th anniversary, Rolex's 'Oyster Perpetual Datejust' remains one of the most recognisable models today. This pre-owned reference from the 1960s is crafted from 18-karat gold and powered by a reliable automatic movement. The 36mm case flaunts a gold dial with the signature dome-shaped 'Cyclops' lens above the date window.