Rolex Datejust 31 White Rolesor — Black Roman Dial, Fluted Bezel | Ref. 278274

Reference 278274 offers the Datejust 31 in White Rolesor — Oystersteel paired with 18-carat white gold — with a fluted white gold bezel and a black dial carrying Roman numeral hour markers. The black-and-white Rolesor palette is among the most formally versatile in the Datejust range: the white metal tones read as silver, the black dial provides depth and authority, and the Roman numerals introduce a classical typographic quality that indexes the watch closer to dress tradition than the more common baton or diamond configurations. The Oyster bracelet in matching White Rolesor grounds the construction in Rolex's functional heritage.

Calibre 2236 drives reference 278274 — Rolex's in-house 31.8 mm movement built for the mid-size Datejust family. The Syloxi silicon hairspring at its core delivers certified chronometer accuracy (better than +2/-2 seconds per day) and a 55-hour power reserve, while its architecture incorporates Rolex's Paraflex shock-absorption system for resilience in daily wear. The Oysterclasp on the Oyster bracelet provides a straightforward, secure closure consistent with the watch's tool-watch DNA even in this semi-precious execution.

For the collector seeking a mid-size Datejust with maximum legibility and formal character, the black Roman dial on reference 278274 is a particularly considered choice. It represents one of the less embellished configurations in the 278xxx generation — no diamonds, no mother-of-pearl — which keeps its secondary market price accessible while retaining all the manufacture-movement and material credentials of the broader range. Those acquiring it as a daily driver will find it equally at home in conservative business environments and formal evening settings.