Rolex Datejust 31 Rolesor — Yellow Rolesor Mother-of-Pearl Diamond Dial | Ref. 178243

The Datejust 31 in Yellow Rolesor — Rolex's proprietary combination of Oystersteel and 18-carat yellow gold — showcases the brand's enduring mastery of two-material construction. Reference 178243 pairs the characteristic yellow gold bezel and bracelet centre links with a steel case middle, creating the warm-yet-robust Rolesor aesthetic that has been a cornerstone of the Datejust identity for decades. The mother-of-pearl dial, set with diamond hour markers, introduces an organic iridescence that shifts between cream, pink, and silver depending on the angle of illumination, while the diamonds provide precise, glittering reference points for the eye.

The 178243 is fitted with Calibre 2235, Rolex's in-house self-winding movement designed for the mid-size Datejust. The 2235 operates at 28,800 vibrations per hour, a frequency chosen to balance precision with component longevity, and features the Parachrom hairspring for enhanced resistance to magnetic fields and mechanical shocks. Rolex's Superlative Chronometer certification, applied to the complete watch after casing, guarantees performance of -2/+2 seconds per day under real-world conditions.

Yellow Rolesor Datejusts with mother-of-pearl and diamond dials represent a perennial favourite in the pre-owned luxury watch market, appreciated for their versatility as both everyday wearing pieces and dress watches. The warm two-tone aesthetic of yellow Rolesor has broad appeal across age groups and markets, and the 178243's diamond-set mother-of-pearl dial ensures it transitions effortlessly from casual to formal contexts. A quintessential mid-size Datejust with enduring character.