Rolex Datejust 31 White Rolesor — Mother-of-Pearl Diamond Dial | Ref. 178344

Reference 178344 is the Datejust 31 in White Rolesor — Rolex's proprietary pairing of Oystersteel and 18-carat white gold — with a mother-of-pearl diamond dial set beneath a 24-diamond bezel. At 31 mm, this reference occupies the midsize tier of the Datejust family, a proportioning that has historically served both smaller wrists and those who prefer a watch that reads as jewellery first, instrument second. The combination of white metal tones and iridescent mother-of-pearl creates a coherent monochromatic palette broken only by the fire of the diamond bezel.

The movement inside is Calibre 2236, Rolex's in-house manufacture calibre developed specifically for the mid-size and ladies' Datejust range. It beats at 28,800 vph, features the Syloxi silicon hairspring for enhanced resistance to temperature variation and magnetic fields, and delivers a 55-hour power reserve. The Oyster bracelet in matching White Rolesor — steel centre links flanked by white gold outer links — provides both durability and a precious-metal finish. The fluted white gold bezel catches light from multiple angles, complementing the 24-stone diamond bezel configuration of this reference.

Buyers drawn to reference 178344 are typically seeking a watch that transitions seamlessly from professional to formal social settings. The diamond-set bezel version commands a premium over the plain-bezel 178344, and on the secondary market, examples with box and papers in excellent condition hold value reliably. Its appeal to collectors lies in the Datejust's unbroken lineage — Rolex's oldest perpetually produced model — rendered here in its most ornate mid-size configuration.