Rolex Day-Date 40 Yellow Gold — Silver Bevelled Roman Dial Diamond Bezel | Ref. 228398TBR

The Day-Date 40 — reference 228398TBR — commands immediate attention through the scale of its 40 mm yellow gold case, the largest format in the Day-Date lineage and the one most suited to the bold horological gestures that define this reference's character. Yellow gold in 18 ct provides the case and bracelet, its warm tonality serving as a foil for the diamond-set bezel, where baguette-cut stones (denoted by the TBR suffix) are channel-set with the precision and discipline that distinguish Rolex's gem-setting from mere adornment.

The silver dial with bevelled Roman numerals occupies the middle ground between gem-set excess and classical restraint. Applied Roman numeral indices in yellow gold are machined with bevelled edges, each facet catching light at a different angle to create a subtle three-dimensional effect across the dial surface. The silvered lacquer background provides high contrast and legibility, while the day window at 12 o'clock and the date aperture at 3 o'clock display in their characteristic magnified format, the cyclops lens on the sapphire crystal providing 2.5x date magnification.

The Calibre 3255 within this 40 mm case delivers a 70-hour power reserve with the full complement of Rolex's fifth-generation movement innovations: the Chronergy escapement for improved energy efficiency, the variable inertia balance wheel for precision regulation without the fragility of traditional regulator systems, and the Paraflex shock absorber geometry that absorbs impact energy more effectively than conventional designs. The President bracelet in yellow gold — an object as recognisable as the watch itself — completes a reference defined by the synthesis of jewellery ambition and horological substance.