Rolex Datejust 31 Yellow Gold — Fluted Bezel Black Index | Ref. 178238

The Datejust 31 in solid yellow gold occupies a specific and deliberate position in Rolex's lineup — a mid-size expression of the classic Datejust that predates the modern 28 mm Lady-Datejust without fully crossing into the 36 mm men's territory. Reference 178238 pairs the warm tone of 18 ct yellow gold with a fluted bezel, one of the most enduring decorative signatures Rolex has employed since the original Datejust of 1945. The black dial with applied index hour markers creates a high-contrast, legible face that reads as elegant rather than austere.

Underneath the Oyster case, the Calibre 2235 — Rolex's in-house movement built for the 31 mm class — delivers the precision expected of a Superlative Chronometer, certified to ±2 seconds per day. The yellow gold construction extends throughout: case, crown guards, and the characteristic fluted bezel are all rendered in the same precious metal, giving this reference an uncompromised mono-material composition. Scratch-resistant sapphire crystal and the signature Triplock crown seal maintain water resistance to 100 metres.

For collectors, Ref. 178238 represents the all-gold Datejust 31 in its most traditional configuration. The combination of fluted bezel and black index dial is a classic pairing that has maintained consistent demand on the secondary market, particularly among buyers who appreciate the 31 mm case for its balance of presence and wearability. It sits comfortably as both a standalone collector piece and a complement to larger yellow gold Rolex references in an existing collection.