Rolex Datejust 31 Yellow Rolesor — Silver Diamond Dial, 46-Diamond Bezel | Ref. 178383

Reference 178383 is the Datejust 31 in its most jewellery-forward configuration: a 46-diamond pavé bezel encircling a silver dial set with diamond hour markers, all presented in Yellow Rolesor — Rolex's combination of Oystersteel and 18ct yellow gold. At 31mm, the mid-size Datejust occupies a transitional space in the collection, offering a more substantial presence than the Lady-Datejust 28 while remaining elegantly proportioned for a broad range of wearers.

Power comes from the Calibre 2236, Rolex's dedicated movement for the mid-size and ladies' range. The 2236 incorporates the Syloxi silicon hairspring — developed in-house by Rolex — which provides superior isochronism and resistance to temperature variation and magnetic fields compared to traditional Nivarox alloys. A 55-hour power reserve and COSC-certified chronometric precision place this movement firmly in the top tier of mid-size calibres. The Jubilee bracelet in Oystersteel and yellow gold completes a cohesive two-tone aesthetic.

The 178xxx reference family represents the penultimate generation of the Datejust 31 before Rolex updated the line with the 278xxx series. Collectors who favour the slightly smaller lug-to-lug of the earlier case will find this reference particularly desirable. The diamond bezel configuration adds gem-set value without compromising the essential legibility that defines the Datejust identity.