Rolex Lady-Datejust 28 Yellow Rolesor — Silver Diamond Dial | Ref. 279163

The Lady-Datejust 28 in Yellow Rolesor is among the most graceful watches in the Rolex catalogue, and Reference 279163 presents this 28 mm form at its most elegantly appointed. Yellow gold and Oystersteel unite in the case and bracelet architecture, the warm tone of 18 ct yellow gold contrasting with the steel's cooler lustre to produce the two-tone character that has defined Rolex Rolesor pieces since their introduction. The silver dial with diamond hour markers — each stone individually set and certified for quality — provides a surface of quiet brilliance that catches light with every movement of the wrist.

Powering Reference 279163 is Calibre 2236, Rolex's dedicated manufacture movement for the 28 mm Lady-Datejust. The Syloxi hairspring — silicon-based and produced entirely within Rolex facilities — is the movement's principal technical achievement, delivering consistent isochronism unaffected by magnetic fields and showing significantly greater resistance to shock and temperature variation than conventional metal alloy hairsprings. The perpetual rotor winds bidirectionally, while the Superlative Chronometer designation confirms accuracy to ±2 seconds per day after casing — twice the precision required for COSC chronometer certification.

Reference 279163 occupies a particularly versatile position in the Lady-Datejust range: the combination of yellow Rolesor and diamond indices is formal without being ostentatious, and the 28 mm case size flatters a wide range of wrist profiles. These watches are frequently the first Rolex purchase for female collectors, and just as often the piece that experienced collectors return to when seeking a companion to sport references. The reference holds consistent secondary market strength, reflecting both its broad appeal and the enduring desirability of the Lady-Datejust format.