Rolex Datejust 31 Everose Rolesor — Rose Diamond Dial | Ref. 278341RBR

Reference 278341RBR represents one of the most jewel-forward configurations in the current Datejust 31 lineup. The 24-diamond bezel replaces the standard fluted or smooth options with a continuous ring of brilliant-cut diamonds, and the rose diamond dial — set with diamonds across the entire surface — transforms the watch into an object of sustained visual intensity. This is not a casual complication; it is a deliberate statement about the integration of gem-setting craft into an everyday wearable watch.

At its core, the 278341RBR is powered by Calibre 2236, Rolex's manufacture movement developed specifically for the 31mm case family. The movement introduces a silicon Syloxi hairspring, improving isochronism and magnetic resistance while reducing the movement's sensitivity to temperature fluctuation. Beating at 28,800 vph, it offers a 55-hour power reserve — meaningfully ahead of the previous Calibre 2235. The Everose Rolesor construction pairs 18ct Everose gold on the case, crown, and bezel setting with Oystersteel on the bracelet's outer links, a combination that holds its colour stability better than standard rose gold alloys.

The RBR suffix is Rolex's internal designation indicating a diamond-set bezel configuration with additional dial gem-setting — a distinction that meaningfully affects the watch's retail and resale positioning. Buyers are acquiring what is effectively a jewellery piece with the practical credentials of a Rolex sports case: 100-metre water resistance and a manufacture movement. For collectors, condition of the diamond setting is paramount; any loose or replaced stones will affect value considerably. This reference attracts buyers who want the full presentation of Rolex's gem-setting expertise in a wearable 31mm package.