Rolex Datejust 31 Yellow Rolesor — Silver Diamond Dial | Ref. 178243

Reference 178243 represents the Datejust 31 in its two-tone Yellow Rolesor configuration — a material combination that has defined Rolex's approachable luxury tier for decades. Rolesor, which pairs an Oystersteel case and bracelet with 18ct yellow gold bezel and crown, strikes a balance between durability and warmth that appeals to wearers who want gold's visual character without a full precious-metal commitment. The silver dial set with diamond hour markers brings a further layer of refinement to what is already a highly versatile reference.

Calibre 2235 powers this 31mm Datejust, a movement purpose-built for mid-sized Rolex watches. It operates at 28,800 vph with a 48-hour power reserve and incorporates Rolex's Parachrom hairspring for enhanced resistance to magnetic fields and temperature variation. The Jubilee bracelet — a hallmark of the Datejust lineage — provides a comfortable, dressy wrist presence that complements the fluted gold bezel's architectural detailing. The silver dial, set with factory diamond indices, reflects light cleanly and adds an element of bespoke finishing not found in index variants.

The 178243 occupies a strong position in the pre-current-generation Datejust 31 market. Its two-tone construction appeals to buyers transitioning from steel into precious metal territory, while the diamond dial makes it a compelling candidate for formal and semi-formal use alike. Collectors who prioritize wearability should note the 31mm case sits comfortably on a wide range of wrist sizes, making this a genuinely versatile daily wearer. Demand for Jubilee-bracelet Rolesor Datejust references in this size has remained consistent in the secondary market.