Rolex Datejust 31 Yellow Rolesor — Fluted Bezel Champagne Diamond Dial | Ref. 278273

The Datejust 31 in Yellow Rolesor — Rolex's exclusive combination of Oystersteel and 18 ct yellow gold — presents Reference 278273 as a masterclass in considered luxury. The champagne dial set with diamond hour markers captures ambient light with a golden warmth, while the fluted bezel in yellow gold delivers the architectural definition that has distinguished the Datejust silhouette since 1945.

Calibre 2236 drives this 31 mm reference, Rolex's dedicated in-house movement for the mid-size Datejust family. The movement incorporates a Syloxi hairspring — fashioned from silicon and thus inherently anti-magnetic and highly stable across temperature variation — paired with a Paraflex shock absorber that protects the movement during impact. A bidirectional self-winding rotor in tungsten ensures efficient winding throughout daily wear, while the Oyster case construction guarantees water resistance to 100 metres.

Rolesor has been part of Rolex's material vocabulary since the 1930s, and the 278273 demonstrates why the combination endures: the contrast between the polished steel case flanks and the yellow gold bezel and crown creates visual texture that neither a purely steel nor a fully gold watch can replicate. Diamond indices add another layer of distinction, catching light differently across changing environments. This is a reference that rewards the discerning collector who values craftsmanship as much as aesthetic refinement.