Rolex Day-Date 36 White Gold — Blue Ombre Diamond Dial, Fluted Bezel | Ref. 128239

Reference 128239 represents the Day-Date 36 at its most architecturally refined: an 18ct white gold case with the iconic fluted bezel — a design element that predates the Day-Date itself, originating with the Datejust in 1945 — paired with a blue ombre diamond dial that transitions from deep midnight at the periphery to a lighter cerulean at the centre. This dial treatment, with its gradient of colour and diamond hour markers, is among the most visually sophisticated configurations available in the Day-Date 36 catalogue, achieving distinction through chromatic complexity rather than jewellery volume.

Calibre 3255, Rolex's most technically advanced self-winding movement, powers this reference. The calibre's Chronergy escapement — engineered in nickel-phosphorus for corrosion resistance and geometric precision — delivers 15% greater efficiency than a conventional Swiss lever escapement, directly enabling the 70-hour power reserve. The Parachrom hairspring, manufactured from a proprietary niobium-zirconium alloy, provides ten times the shock resistance of a conventional hairspring and is unaffected by magnetic fields. The President bracelet in white gold, with its characteristic semi-circular three-piece links, remains exclusive to the Day-Date within the Rolex collection.

White gold Day-Date 36 references with ombre diamond dials represent a nuanced collecting proposition: they offer the prestige of the Day-Date name and Calibre 3255 movement within a 36mm case that many collectors prefer to the larger 40mm. The fluted bezel, rather than a diamond-set variant, keeps the jewellery content focused entirely on the dial, a configuration that appeals strongly to buyers who prioritize dial artistry. On the secondary market, blue ombre dial examples consistently attract premium attention.