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

Reference 178383 is one of Rolex's most lavishly appointed mid-size Datejusts, combining Yellow Rolesor construction — Oystersteel paired with 18ct yellow gold — with a factory-set 46-diamond bezel that frames the dial in a continuous ring of brilliant-cut stones. At 31 mm it occupies the precise crossover point between sport and formal dressing, beloved by collectors who prize understated scale with maximum gem presence.

Powering the watch is the Calibre 2235, Rolex's in-house movement developed specifically for the mid-size Datejust family. The self-winding mechanism delivers approximately 48 hours of power reserve and incorporates the Parachrom hairspring for enhanced resistance to magnetic fields and shocks. The black index dial provides sharp contrast against the gold hour-markers and the surrounding diamond halo, while the Rolesor Jubilee bracelet — with its characteristic five-piece links in alternating steel and gold — delivers a supple, tailored fit.

For the collector, ref. 178383 represents a particularly accessible entry into gem-set Rolex territory. The combination of a jet-black dial and yellow gold tones remains one of the most striking colorways in the Datejust 31 range, and examples retaining their original diamond bezel brightness attract consistent premium over plain-bezel counterparts. It suits a discerning buyer who wants bold jewellery-watch presence without crossing into a larger case diameter.