Rolex Datejust 31 White Rolesor — Dark Grey Diamond Dial | Ref. 278274

Presented in White Rolesor — Rolex's proprietary combination of Oystersteel and 18ct white gold — the Datejust 31 reference 278274 occupies a distinctive position within the Datejust family, offering a mid-size 31mm case that bridges the ladies and gents collections. The dark grey diamond dial creates a dramatic chromatic contrast against the bright Rolesor case, while the fluted bezel in white gold adds architectural definition and a characteristic play of light.

Powering this reference is the Calibre 2236, Rolex's modern in-house automatic movement introduced specifically for the 31mm Datejust. The 2236 incorporates the Syloxi silicon hairspring — a proprietary innovation that renders the escapement virtually impervious to magnetic fields and temperature variation — alongside a Paraflex shock absorber system and a 55-hour power reserve. The movement beats at 28,800 vph and is certified as a Superlative Chronometer, accurate to +2/-2 seconds per day.

The 278274 in its diamond-dialled Rolesor configuration represents an increasingly sought-after proposition for collectors who value the expressive versatility of the 31mm case. The two-tone construction offers wearability across formal and casual contexts alike, while the dark grey diamond dial lends a contemporary edge to a classically proportioned timepiece. These references are particularly appealing to collectors building a capsule wardrobe of Rolex, as they complement both all-steel and precious-metal pieces with equal ease.