Rolex Day-Date 36 Yellow Gold — Mother-of-Pearl Diamond Dial, Fluted Bezel | Ref. 128238

Unveiled at Baselworld 2019, the Day-Date 36 reference 128238 marked Rolex's refinement of its most emblematic collection — the watch worn by more heads of state than any other in history. The 36 mm case in 18ct yellow gold is crowned by a fluted bezel, its machined ridges transmitting the warm yellow gold tone into a series of dazzling geometric highlights. The mother-of-pearl dial below is a study in organic iridescence: harvested from the inner shell of the mollusc, each dial is unique in its subtle play of colour, shifting between cream, silver, and pale green depending on the light source. Diamond hour markers punctuate the dial with lapidary authority.

The Calibre 3255 self-winding movement represents the absolute state of the art in Rolex manufacture calibre design. Among its 14 patents is the Chronergy escapement, a revolutionary escapement geometry that reduces energy consumption while improving reliability, and the variable-inertia balance wheel, whose gold Microstella nuts enable precise, stable regulation. The bidirectional Perpetual rotor winds the mainspring with equal efficiency in both rotational directions, and the resulting 70-hour power reserve makes the watch a reliable companion even after a full weekend away from the wrist.

Mounted on the President bracelet — Rolex's most distinguished metal link configuration — the 128238 presents an image of unassailable authority. The concealed folding Crownclasp maintains the bracelet's smooth visual line while providing a secure and comfortable fit. Water resistance to 100 metres is ensured by the twin-lock screw-down crown and the hermetically sealed Oyster case. Certified as a Superlative Chronometer to ±2 seconds per day, this yellow gold Day-Date with mother-of-pearl diamond dial is a masterpiece of integration between haute horlogerie and jewellery watchmaking.