Rolex Datejust 31 Yellow Rolesor — Mother-of-Pearl Diamond Dial, 46-Diamond Bezel | Ref. 178383

Reference 178383 represents the previous-generation Datejust 31 in Yellow Rolesor trim, immediately identifiable by its 46-diamond bezel — a full pavé-set surround that frames the mother-of-pearl dial in a continuous arc of brilliant-cut stones. This configuration predates the current 278xxx series and is now considered a transitional reference, sought by collectors who appreciate its slightly narrower lug width and the distinctive aesthetic of the older Oyster case profile combined with maximum gem-set specification.

The movement beneath is Calibre 2235, the predecessor to the current 2236 and still a highly regarded manufacture calibre featuring a Parachrom hairspring in niobium-zirconium alloy — blue in colour and offering significant resistance to magnetic fields and temperature variation. Self-winding via Rolex's Perpetual rotor, the 2235 is COSC-certified and has powered millions of Datejust 31 watches with exceptional reliability. The yellow gold elements — crown, bezel setting, and case flanks — are in 18 ct gold, while the Oystersteel components maintain the tool-watch durability the Oyster case is renowned for.

Collectors drawn to 178383 often cite the full diamond bezel as the primary draw, noting that the 46-stone configuration creates a near-seamless ring of light that softer bezel styles cannot replicate. Mother-of-pearl dials in this reference are subject to natural variation in their iridescent patterning, meaning no two examples appear exactly alike — an appealing characteristic for those who view the watch as a wearable objet d'art. Pre-owned specimens in good condition are actively traded and hold steady value given the enduring appeal of this gem-set yellow Rolesor formula.