Rolex Day-Date 40 Yellow Gold — Champagne Index Dial Diamond Bezel | Ref. 228398TBR

Where the standard Day-Date 40 defines presidential elegance, reference 228398TBR amplifies that proposition with a diamond-set bezel that transforms the 40 mm yellow-gold Oyster case into a statement of lapidary distinction. The bezel, set with brilliant-cut diamonds selected for their matching brilliance and fire by Rolex's in-house gem specialists, surrounds a champagne dial whose warm golden depth harmonises with the 18ct yellow gold case material in a cohesive tonal study. Applied yellow-gold index hour markers punctuate the dial at intervals of measured formality, while the Cyclops lens over the date aperture at 3 o'clock magnifies the date numeral 2.5 times for instant readability.

Calibre 3255 — one of the most technically ambitious manufacture movements Rolex has ever released — underpins the 228398TBR with 70 hours of power reserve and Superlative Chronometer accuracy of ±2 seconds per day. The movement incorporates 14 patents and represents a complete rethinking of the Datejust/Day-Date calibre family. The Chronergy escapement in nickel-phosphorus alloy increases energy efficiency by 15 percent, while the Paraflex shock absorbers at the bearing positions improve shock resistance by 50 percent compared to conventional systems. The Parachrom hairspring, blue in colour through an exclusive Rolex surface treatment, operates reliably in magnetic fields of considerable strength.

The President bracelet in 18ct yellow gold — reserved exclusively for Day-Date references — brings the composition to its natural conclusion. Its three-link structure with concealed Crownclasp closure has defined presidential wrist presence for nearly seven decades. Presented with a diamond bezel and matching champagne dial, the 228398TBR is among the most jewel-intensive expressions in the current Day-Date 40 range — a watch that carries both the weight of history and the brilliance of the finest gemstones.