Rolex Datejust 31 Yellow Rolesor — White Roman Dial with Diamond Bezel | Ref. 278383RBR

Reference 278383RBR sits at the intersection of the Datejust 31's contemporary generation and its most jewellery-intensive specifications: a diamond bezel, a white Roman numeral dial, and the Rolesor two-tone configuration in yellow gold and Oystersteel. The RBR suffix designates the diamond-set bezel variant, distinguishing it from the fluted and smooth bezel options in the same family. As a 278xxx reference, this watch is equipped with Rolex's modern 31 mm case architecture and benefits from the performance advances that came with that generation.

Calibre 2236, the self-winding manufacture movement developed exclusively for Rolex's 31 mm watches, provides the mechanical core. It incorporates a Syloxi silicon hairspring — offering resistance to magnetic fields and improved thermal stability — alongside a 55-hour power reserve and an Instantaneous date-change mechanism. The diamond bezel adds a continuous band of brilliant-cut stones around the 18ct yellow gold and Oystersteel case, while the white dial with Roman numeral hour markers in yellow gold contributes an upright, formal aesthetic. The Jubilee bracelet in Rolesor metals completes the ensemble.

For buyers, the 278383RBR occupies a position of particular appeal: it combines three elements that each independently attract demand — the diamond bezel for jewellery buyers, the Roman numeral dial for those who prefer numerals to index markers, and Rolesor for collectors who value the two-tone aesthetic. Rolex's diamond-bezel Datejusts hold their value exceptionally well, as the gem setting adds tangible intrinsic value beyond the horological component, and the white dial in this configuration is among the most elegant in the range.