Rolex Lady-Datejust Yellow Gold — Dark Mother-of-Pearl Roman Dial | Ref. 80318

Reference 80318 belongs to the Pearlmaster family — Rolex's most jewellery-forward expression of the Datejust. At 29 mm in yellow gold, it sits at the intersection of haute horlogerie and haute joaillerie, with a 12-diamond bezel framing a dark mother-of-pearl dial marked by Roman numeral indices. The result is a piece conceived as much for formal occasions as for daily refinement.

Powering the watch is the Calibre 2236, Rolex's self-winding movement developed specifically for smaller-cased models. Its headline feature is the Syloxi hairspring — a silicon component machined in-house that delivers superior isochronism and resistance to magnetic fields compared to traditional alloy springs. The 31-jewel movement offers a 55-hour power reserve. The yellow gold case and integrated bracelet (typically the President or Pearlmaster) maintain Rolex's standard of 100-metre water resistance.

Collectors drawn to the 80318 are typically after the full jewellery-watch experience: the combination of precious metal, diamond setting, and the luminous depth of natural mother-of-pearl is not replicated in steel or Rolesor configurations. Yellow gold with dark MOP creates a striking tonal contrast. Pre-owned examples in excellent condition with original box and papers command a premium, and the Pearlmaster's relative production exclusivity compared to standard Datejust references makes it a desirable long-term holding.