Rolex Day-Date 36 Yellow Gold — White Mother-of-Pearl Diamond Dial | Ref. 128398TBR

Reference 128398TBR represents the Day-Date 36 at its most ceremonial: a 36 mm case hewn from 18 ct yellow gold, paired with a bezel whose entire circumference is set with baguette and brilliant-cut diamonds in a configuration Rolex designates TBR (Top Baguette Round). The President bracelet, exclusive to the Day-Date since 1956, links flush to the lugs in a three-piece semi-circular profile that remains one of the most recognisable wrist architectures in horology.

At the centre of the dial lies a white mother-of-pearl chapter ring further dressed with diamond hour markers, creating a surface that refracts ambient light with each movement of the wrist. Mother-of-pearl dials are sliced from a single mollusc shell and therefore vary minutely from piece to piece, ensuring that no two examples share an identical iridescent character — a natural uniqueness that no manufactured material can replicate.

Beating inside is the self-winding Calibre 3255, Rolex's generation-defining movement awarded fourteen patents. It operates at 28,800 vph, incorporates the Chronergy escapement — a nickel-phosphorus lever and escape wheel that improves energy efficiency by fifteen percent over conventional Swiss lever geometry — and delivers a certified 70-hour power reserve. The movement sits on a Paraflex shock absorption system and is certified as a Superlative Chronometer to ±2 seconds per day. Produced in 2024 and supplied complete with box and papers, this example is among the most complete expressions of Rolex's presidential tradition.