Rolex Datejust 31 Yellow Rolesor — Mother-of-Pearl Diamond Dial, 24-Diamond Bezel | Ref. 178343

Reference 178343 represents one of the most jewel-forward expressions within the Datejust 31 family, combining the enduring two-tone Rolesor construction with a full diamond bezel and a mother-of-pearl dial set with additional diamond hour markers. It occupies a distinct position in the lineup as a piece that bridges haute joaillerie with Rolex's foundational sports-dress DNA.

Powered by Calibre 2235, a self-winding movement manufactured entirely in-house and equipped with a Parachrom hairspring for enhanced resistance to magnetic fields and thermal variation, this reference delivers both precision and longevity. The case pairs stainless steel flanks with 18 ct yellow gold lugs and crown, while the 24-diamond bezel provides a continuous circuit of brilliance around the fluted profile. The mother-of-pearl dial, naturally iridescent and unique to each example, carries diamond-set indices that interact with ambient light in shifting, dimensional fashion.

For the collector, Ref. 178343 speaks to a buyer who values the full jewellery expression of the Datejust format without crossing into the more formal Pearlmaster territory. The two-tone Rolesor case keeps it wearable and versatile, while the diamond-set details ensure it registers unmistakably as a luxury object. Examples in strong condition with original bracelet and documentation hold consistent demand in the secondary market.