Rolex Datejust 31 Yellow Rolesor — Silver Index Dial, Fluted Bezel | Ref. 178273

Reference 178273 represents the Yellow Rolesor configuration of the Datejust 31 — combining Oystersteel with 18ct yellow gold on the bezel and bracelet centre links. Yellow gold Rolesor is among the most historically grounded of Rolex's bi-material specifications, evoking the original Datejust aesthetic that debuted in 1945 while benefiting from decades of refinement in case construction and movement technology.

The silver index dial prioritises clarity, with applied hour markers providing depth and legibility that printed indices cannot replicate. This reference runs on Calibre 2236, the movement Rolex designed for the mid-size Datejust and Lady-Datejust segment. Its Syloxi silicon hairspring — a material developed collaboratively with CSEM — brings anti-magnetic performance and long-term stability, supporting a power reserve of around 55 hours.

For buyers seeking a versatile, classically proportioned Rolex, the 31mm Yellow Rolesor Datejust offers a compelling proposition. The combination of yellow gold accents against stainless steel gives the piece breadth: it reads as sportive in casual settings and elevated in professional ones. Reference 178273 predates the current-generation calibre upgrade, making well-preserved examples with original bracelet links increasingly attractive to condition-conscious collectors.