Rolex Datejust 31 White Rolesor — Dark Grey Roman Dial | Ref. 278240

A second configuration bearing reference 278240, this Datejust 31 in White Rolesor with dark grey Roman dial reaffirms the appeal of a mid-sized Rolex with cool two-tone materials and a classically formatted dial. The 31 mm Oyster case in White Rolesor — Oystersteel with 18 ct white gold bezel, crown, and Jubilee bracelet centre links — occupies an ideal size for wearers seeking a watch that sits comfortably on a range of wrist sizes without the delicacy of the Lady-Datejust 28.

Calibre 2236, Rolex's dedicated mid-size automatic movement, provides the 278240's mechanical foundation. Its silicon Syloxi hairspring confers exceptional antimagnetic performance and long-term rate stability, while the 55-hour power reserve exceeds weekend winding requirements with ease. The dark grey dial with Roman numeral hour markers offers a measured formality, with the numeral style adding depth and legibility in a way that applied indices alone do not.

This reference suits collectors who value a current-production Datejust 31 with the reliability of a factory-fresh movement and the accessibility of White Rolesor pricing relative to full white gold alternatives. The dark grey Roman dial configuration is among the less common options in the 278240 range, lending the piece a degree of distinction on the wrist. For those building a versatile watch collection, the Datejust 31 in this specification transitions effortlessly from boardroom to weekend wear.