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

The Datejust 31 reference 178243 exemplifies Rolex's mastery of the Rolesor tradition — a technique patented by the brand in 1933 that combines stainless steel with precious metal to create a timepiece of hybrid elegance. Here, a yellow Rolesor configuration pairs an Oystersteel case and bracelet with 18 ct yellow gold crown, bezel and centre bracelet links, while the champagne dial with Roman numeral hour markers lends the 31 mm watch a classical warmth ideally suited to both formal and semi-casual wear.

The reference 178243 is driven by the Calibre 2235, a self-winding movement developed by Rolex specifically for the mid-size Datejust. Beating at 28,800 vph, the 2235 provides a 48-hour power reserve and is equipped with a Parachrom hairspring for resilience against magnetic fields and mechanical shocks. It achieves Superlative Chronometer certification, guaranteeing ±2 seconds per day accuracy. The date is displayed through an instantaneous magnified aperture at 3 o'clock, using Rolex's patented Cyclops lens for 2.5× magnification. The Oyster case provides water resistance to 100 metres.

The 31 mm Datejust occupies a singular position in the market — large enough for contemporary sensibilities yet retaining the refined proportions of the classic mid-century Rolex aesthetic. Yellow Rolesor configurations with Roman numeral champagne dials have demonstrated consistent collector demand, particularly in pre-owned markets where original box and papers command meaningful premiums. Reference 178243 represents a timelessly elegant choice for the discerning wearer who values heritage craftsmanship and enduring resale fundamentals in equal measure.