Rolex Datejust 31 Yellow Rolesor — Olive Green Diamond Dial, Diamond Bezel | Ref. 278383RBR

Reference 278383RBR marks the current-generation Datejust 31, built on the 278xxx platform that introduced Calibre 2236 and a suite of refinements over its 178xxx predecessor. The Yellow Rolesor construction — combining Oystersteel and 18-carat yellow gold — is elevated here by an RBR diamond-set bezel and an olive green dial pavé-set with diamond hour markers, a combination that brings a distinctly contemporary sensibility to the traditional 31 mm format.

Calibre 2236 represents a meaningful advancement for ladies' Rolex movements: it incorporates a Syloxi silicon hairspring — developed entirely in-house — which delivers enhanced resistance to magnetic fields and temperature variation without requiring the anti-magnetic cage used in men's movements. The 31 mm Oyster case presents the new-generation lugs and brushed-polished finishing standard, while the RBR bezel's individually set brilliant-cut diamonds total approximately 1.36 carats. The olive green dial's gem-set surface is achieved through meticulous hand-setting by Rolex artisans.

This reference targets the collector who wants a current-production Rolex with jewellery-grade presentation and the movement technology of the modern era. The olive green dial — introduced relatively recently in the Datejust palette — carries a freshness that distinguishes it from the more established champagne or white configurations. As a current reference with full factory support, it also offers practical ownership advantages over discontinued predecessors.