Rolex Datejust 31 Yellow Rolesor — Slate Grey Roman Dial | Ref. 178243

Ref. 178243 is a Datejust 31 configured in Yellow Rolesor with a slate grey Roman numeral dial — a combination that balances legibility with material warmth in a way that the more common white or silver dials do not. The 31mm case sits between the Lady-Datejust 28 and the Datejust 36, making it genuinely versatile across wrist sizes and intended use cases. Yellow Rolesor brings together Oystersteel for the case body and bracelet centre links with 18ct yellow gold for the fluted bezel and crown, creating a two-tone construction with decades of history behind it.

The Calibre 2235 sits at the core of this reference — a self-winding movement designed for Rolex's mid-size Datejust line, featuring a Parachrom hairspring that resists magnetic fields and physical shock more effectively than traditional alloy hairsprings. The slate grey dial with Roman numerals is produced to Rolex's exacting standards for dial finishing, with the numerals offering a tactile and visual contrast to the smooth dial surface. The Jubilee bracelet, typically associated with this reference in Rolesor configuration, provides comfortable daily wearability across its integrated clasp system.

From a collector's perspective, the 178243 is a well-rounded pre-owned proposition. The Roman numeral variant of the grey dial is less common than the index configuration, giving it a slight scarcity premium that buyers researching the 178xxx series often overlook. Yellow Rolesor Datejusts at 31mm occupy a practical price tier that has proven durable in the secondary market, appealing to buyers who want material quality and recognisable design without reaching into the more aggressively priced 36mm full-gold territory.