Rolex Lady-Datejust 28 Platinum — Silver Index Dial with 44-Diamond Bezel | Ref. 279136RBR

The Lady-Datejust 28 in platinum represents Rolex's most precious interpretation of its founding model — a watch that introduced the automatically changing date display to the world in 1945. Reference 279136RBR presents the 28mm case in 950 platinum, a metal of extraordinary rarity reserved exclusively for Rolex's most exalted references, whose natural grey lustre finds perfect alignment with the 44-diamond bezel set en pavé around the sapphire crystal. Each diamond is selected for colour, cut, and clarity to Rolex's exacting Certified Gem standards, their combined brilliance encircling the dial with unbroken luminosity.

The silver dial within — clean, luminous, and of exceptional finishing quality — carries applied index hour markers in platinum, each a miniature precision component in its own right. The Cyclops lens at 3 o'clock, Rolex's date-magnification invention now in its eighth decade of continuous production, enlarges the date display 2.5 times against the silver field. The President bracelet in 950 platinum, with its distinctive semi-circular three-piece links and concealed Crownclasp, has accompanied the Day-Date and Lady-Datejust as the ultimate dress bracelet since 1956 — here rendered in the rarest metal Rolex employs.

At 28mm, the Lady-Datejust calls for a movement of exceptional compact precision, and the Calibre 2236 delivers exactly that. Its Syloxi hairspring — a silicon component developed entirely in-house by Rolex — provides superior performance relative to conventional metal hairsprings in terms of magnetic resistance, thermal stability, and shock resilience, while its 55-hour power reserve exceeds the demands of any normal wearing schedule. Waterproof to 100 metres via the Twinlock screw-down crown, this 279136RBR is a Lady-Datejust of the highest conceivable standing.