Rolex Datejust 31 White Rolesor — Aubergine Roman Diamond Dial | Ref. 278384RBR

The Datejust 31 in White Rolesor — a pairing of Oystersteel and 18-carat white gold — is among Rolex's most enduring two-tone configurations, and Reference 278384RBR elevates the formula with a diamond-set bezel and an aubergine Roman dial that is both unusual and immediately arresting. The aubergine colourway — a deep eggplant purple with violet undertones — is achieved through a combination of lacquer chemistry and dial surface preparation at Rolex's Geneva dial manufacture, producing a hue that shifts perceptibly between warm artificial light and natural daylight.

Roman numerals on a coloured dial represent one of Rolex's most traditional dial configurations, a design language continuous from the early Datejust references of the 1940s. Here, the applied Roman numerals in 18-carat white gold stand in crisp contrast against the deep aubergine field, with a diamond set at the 6 o'clock position — the 'Diamond 6' specification — adding jewellery distinction without disrupting the classical numerals. The diamond bezel, with its 30 or 44 stones depending on specific configuration, completes the jewellery register.

Calibre 2236, Rolex's dedicated movement for 31 mm references, powers the 278384RBR with its silicon Syloxi hairspring and COSC chronometer certification, delivering 55 hours of power reserve. The Oyster bracelet in White Rolesor — Oystersteel links with white gold centre links — provides a secure, tool-free Easylink adjustment of up to 5 mm for comfort in varying temperatures. White Rolesor Datejust references in coloured dials have demonstrated consistent appreciation in secondary market valuations, reflecting enduring collector demand.