Rolex Datejust 31 Yellow Rolesor — Champagne Diamond Domed Diamond Bezel | Ref. 278343

Reference 278343 represents the Datejust 31 in Yellow Rolesor with a domed diamond bezel and champagne diamond dial — a configuration that draws the eye through warm material harmony and layered gem-set surfaces. Yellow Rolesor, combining Oystersteel with 18ct yellow gold accents in the bezel and bracelet, is among the more classically evocative Rolex material pairings, its two-tone aesthetic rooted in decades of Datejust tradition. The domed bezel profile, set with round brilliant diamonds, creates a softer visual silhouette compared to the flat-set diamond bezel, lending the watch a more jewellery-like character without sacrificing its inherent watch identity.

The Calibre 2236 powers this reference, as it does all current-generation Datejust 31 models. Developed specifically for Rolex's 31mm case size, the 2236 incorporates a Syloxi hairspring in silicon — a material advantage that provides improved magnetic resistance and long-term stability compared to traditional Nivarox alloys. The movement offers a 55-hour power reserve and holds Superlative Chronometer certification, guaranteeing performance within ±2 seconds per day. The champagne diamond dial, with its warm base tone set with diamond hour markers, creates a continuous visual dialogue with the yellow gold elements of the Rolesor case and bracelet.

Buyers drawn to this reference are typically navigating the space between wearable daily luxury and jewellery-calibre presentation. Yellow Rolesor with a champagne dial is one of the warmer, more harmonious palettes Rolex produces in this size — it reads as cohesive and considered rather than contrasting. Demand for the 278343 on the secondary market benefits from the enduring popularity of the two-tone Datejust format, and diamond-set variants at this price point regularly attract strong interest from buyers seeking an upgrade from standard-configuration alternatives.