Rolex, Day-Date 40, 228239, Mother of Pearl Diamond Dial, White Gold, Presidential Bracelet, 40mm

The watch is crafted in a 40mm Oyster case made from 18ct white gold, giving the overall design a cooler and more refined appearance that complements the lighter dial material.

Its Oyster construction incorporates a screw-down caseback and Twinlock winding crown, maintaining water resistance up to 100 meters while preserving the balanced proportions of the Day-Date 40.

The fluted bezel surrounds the dial with sharply defined ridges that create controlled reflections around the perimeter of the case.

At the center is a white mother-of-pearl dial formed from natural shell, allowing subtle variations in texture, color, and iridescence to appear across the surface.

Unlike metallic or lacquered dials, the appearance changes less with brightness and more with how light interacts with the material's natural layers.

Diamond hour markers are mounted in white-gold settings, introducing brighter points of light while maintaining a clean, symmetrical layout.

The day display spans across 12 o’clock, while the date aperture at 3 o’clock is magnified through the Cyclops lens for improved legibility.

Its President bracelet is crafted in matching white gold, using semi-circular three-piece links designed to contour naturally around the wrist while maintaining a substantial yet balanced feel.

A concealed Crownclasp integrates directly into the bracelet, preserving a continuous metallic appearance when secured.

Inside, the watch is powered by the Rolex caliber 3255 automatic movement, offering approximately 70 hours of power reserve and regulated to Rolex’s Superlative Chronometer standard.

What sets this reference apart is the scale of the mother of pearl dial within the larger 40mm case.

The additional dial surface allows the natural patterns and iridescent character of the material to become more noticeable, making the dial itself the defining feature of the watch rather than the surrounding white gold construction.