Rolex Datejust 31 Gold — Rhodium Index Dial | Ref. 278245

Reference 278245 is part of the current-generation Datejust 31 lineup, configured in solid gold with a rhodium dial and applied index hour markers. Rhodium dials occupy a specific position in the Rolex dial lexicon — their cool grey-silver tone sits between the brightness of white and the depth of slate, offering a contemporary neutrality that works especially well against yellow or Everose gold cases by providing chromatic contrast rather than warmth-on-warmth repetition. The 278xxx reference series represents the current production Datejust 31, meaning this watch benefits from the upgraded Calibre 2236 and the refined Oyster case proportions of the current generation.

The Calibre 2236 powers this reference, Rolex's manufacture movement purpose-built for the 31mm Datejust and Pearlmaster case diameter. Its Syloxi silicon hairspring offers improved resistance to magnetic interference and thermal fluctuation compared to traditional metal hairsprings, contributing to the movement's COSC chronometer certification. The solid gold Oyster case at 31mm is paired with the Jubilee or Oyster bracelet depending on the specific variant, with the gold construction carrying Rolex's standard 100-metre water resistance through the triple-locked Twinlock crown. The rhodium dial carries applied gold index markers, their polished surfaces catching light to provide legibility without the complexity of numeral or diamond-set indices.

In the pre-owned segment, solid gold Datejust 31 references from the current 278xxx generation command meaningful premiums over their Rolesor equivalents, driven by intrinsic metal value and the relatively lower production volumes of solid gold variants compared to mixed-metal configurations. The rhodium dial is considered a sophisticated choice — less common than white or champagne, and particularly favoured by buyers who want a formal watch with a cooler tone than yellow gold typically projects. This is a well-balanced reference for the collector seeking contemporary manufacture quality in a classical small-case format.