Rolex Datejust 31 White Rolesor — 24 Diamond Bezel Black Index Dial | Ref. 178344

White Rolesor — Rolex's proprietary combination of Oystersteel and 18 ct white gold — is the material language of reference 178344, a 31 mm Datejust that deploys the two-tone construction with particular elegance. Oystersteel, the brand's designation for their 904L stainless steel alloy, provides the case body and Oyster bracelet, while white gold is applied to the bezel, crown, and bracelet centre links — a distribution of precious metal that rewards close inspection without declaring itself at distance.

The 24-diamond bezel represents a more intensive gem application than the single-stone or fluted alternatives in the 31 mm Datejust range. Twenty-four brilliant-cut diamonds, each individually prong-set, circle the bezel in a configuration that maintains geometric precision while maximising the stones' exposure to light. Against this jewelled frame, the black dial with applied index hour markers reads with striking contrast — the matt or glossy black surface absorbing light that the bezel returns as sparkle, creating a visual dynamic between dial and bezel that changes under different light conditions.

The Oyster bracelet in White Rolesor — alternating polished centre links in white gold with brushed Oystersteel outer links — connects with the case through Rolex's folding Oysterclasp with the Easylink comfort extension system, allowing 5 mm of rapid bracelet adjustment without tools. The Calibre 2236 inside, with its Syloxi hairspring and 55-hour power reserve, ensures that the 178344 performs as a precision chronometer rather than merely as a jewelled ornament.