Rolex Datejust 31 White Rolesor — 46 Diamond Bezel, Black Sunbeam Roman Dial | Ref. 178384

Contrasts of light and dark animate the Datejust 31 reference 178384 with a visual energy that is at once dramatic and refined. The black sunbeam dial — its surface finished with radiating brushed striations that emanate from the centre outward — creates an almost hypnotic depth, drawing the eye inward before returning attention to the Roman numerals that mark each hour with classical precision. Against this dark ground, the 18-karat white gold case details and bracelet elements generate a crisp chromatic dialogue, while a bezel set with 46 brilliant-cut diamonds provides an outer corona of light that anchors the entire composition.

The 31 mm Oystersteel case — a format that Rolex has refined to exquisite proportions for the lady's or mid-size wearer — is built to the full Oyster specification: solid monobloc middle, screw-down case back, and a Twinlock screw-down crown that maintains waterproofness to 100 metres. The sapphire crystal is fitted with a cyclops lens over the date aperture at 3 o'clock, maintaining the Datejust's defining functional characteristic with the enhanced legibility that has made this feature a Rolex trademark. The Oystersteel Oyster bracelet, completed with a folding Oysterclasp, provides a secure and comfortable fit.

Calibre 2235 — the predecessor to the current Calibre 2236 — powers this reference, a perpetual self-winding manufacture movement featuring the Glucydur beryllium-copper balance wheel and Parachrom hairspring combination that defined Rolex's approach to resilient, accurate timekeeping across the earlier generation of the 31 mm Datejust. With COSC chronometer certification and a power reserve of approximately 48 hours, Calibre 2235 delivers the chronometric dependability that is a non-negotiable aspect of the Rolex standard. The 178384 stands as a compelling example of Rolex's ability to render formal elegance in a format that performs equally well in daily wear.