Rolex Datejust 31 Everose Rolesor — Dark Rhodium Dial with 24 Diamond Bezel | Ref. 278341RBR

Reference 278341RBR represents the Datejust 31 at its most contemporary, pairing the warm blush of Everose Rolesor — Rolex's proprietary blend of 18 ct rose gold and Oystersteel — with a dark rhodium dial that achieves a striking tonal contrast against the 24-diamond set bezel. Introduced with the 278xxx reference range, this configuration reflects Rolex's post-2016 design direction for the mid-size Datejust: a more refined bezel profile, subtly updated case geometry, and an expanded palette of dial and stone combinations. The dark rhodium surface catches light differently across the day, shifting between slate and graphite depending on ambient conditions.

At the heart of this reference is Calibre 2236, Rolex's manufacture movement developed specifically to power the current generation of 31 mm Datejust models. Oscillating at 28,800 vph with a Syloxi hairspring — a proprietary silicon component replacing the traditional Parachrom in this calibre — the 2236 delivers a 55-hour power reserve and exceptional isochronism. The Syloxi spring is antimagnetic and highly resistant to temperature fluctuations, representing a meaningful technical advancement over its predecessor. The Oyster case provides waterproofing to 100 metres via the twinlock winding crown.

The RBR suffix designates the diamond-set bezel, a configuration that elevates the 278341 into collector territory where horological and jewellery values intersect. Everose Rolesor models in this reference are among the most sought-after in the 31 mm segment, appreciated for their colour harmony and the relative rarity of the two-tone precious metal combination. For the collector seeking a current-generation Datejust 31 with maximum material presence, the 278341RBR dark rhodium dial is a compelling expression.