Rolex, Day-Date 40, 228349RBR, Black Diamond Dial, White Gold, Diamond Bezel, Presidential Bracelet, 40mm.

The watch is configured with a 40mm Oyster case crafted from 18ct white gold, giving the overall structure a cooler and more restrained tone despite the presence of diamonds throughout the design.

Its Oyster case construction integrates a screw-down caseback and Twinlock winding crown, forming a sealed assembly engineered for water resistance up to 100 meters.

The bezel is fully set with brilliant-cut diamonds, individually aligned within hand-finished settings that follow the case's curvature, with consistent spacing and height.

As the wrist moves, the bezel produces scattered reflections rather than a continuous shine, creating a constantly shifting outer frame around the dial.

The black dial features a glossy lacquer finish, resulting in a deeper, more concentrated surface appearance compared to textured or sunray dials.

Its darker tone creates a strong contrast against the reflective white-gold case and diamond bezel, giving the watch sharper overall visual contrast.

Diamond hour markers are mounted in white-gold settings, introducing reflective points across the dial without disrupting the symmetry of the layout.

The day aperture extends across 12 o’clock, while the date display at 3 o’clock is magnified through the Cyclops lens, ensuring both indications remain highly legible against the black background.

Its President bracelet is crafted in matching white gold, formed from semi-circular three-piece links engineered to contour naturally around the wrist and distribute the watch's weight evenly.

A concealed Crownclasp integrates directly into the bracelet, maintaining a continuous metallic surface without exposing the fastening mechanism when secured.

Inside, the watch features the Rolex caliber 3255 automatic movement, featuring a Chronergy escapement and an optimized energy transfer system for improved efficiency and long-term precision.

The movement delivers approximately 70 hours of power reserve and is regulated to Rolex’s Superlative Chronometer tolerance of -2/+2 seconds per day after casing.

The combination of the glossy black dial and fully diamond-set bezel creates a stronger separation between shadow and reflection, where the darker center visually concentrates the dial while the surrounding diamonds amplify movement and light around its perimeter.