Rolex Datejust Yellow Rolesor — Silver Diamond Roman VI Diamond Dial | Ref. 178273

Ref. 178273 presents the Datejust 31 in Yellow Rolesor — Rolex's trademarked combination of Oystersteel and 18 ct yellow gold — adorned with a fluted bezel and a silver dial featuring diamond-set Roman numerals and a diamond VI marker. The 31 mm mid-size case occupies a beautifully versatile position in Rolex's size architecture, offering wrist presence that reads as genuinely luxurious while retaining the refined proportions of a dress timepiece. The Yellow Rolesor treatment distributes gold accents — bezel, crown, and bracelet centre links — against Oystersteel's characteristic satin and polish to striking effect.

Powering this reference is Calibre 2235, Rolex's self-winding movement developed specifically for the mid-size and ladies' Datejust formats. The 2235 incorporates a Parachrom hairspring and the same Perpetual rotor architecture found across Rolex's manufacture movements, delivering reliable precision and approximately 48 hours of power reserve. The date display, instantaneously corrected through the rapid-set mechanism, advances cleanly at midnight, its crisp white date wheel framed by the magnifying Cyclops lens at 3 o'clock — a functional hallmark that Rolex has refined over decades.

The 178xxx generation of the Datejust 31 occupies a sweet spot for collectors who appreciate the mature, well-proven 2235 calibre in a configuration defined by genuine gemological investment. The diamond Roman numeral dial adds appreciable intrinsic value and aesthetic richness, elevating this example beyond a standard Rolesor variant into genuinely jewellery-watch territory — a dual identity that defines the most compelling Datejust configurations.