Rolex Lady-Datejust 28 Yellow Rolesor — Fluted Bezel Silver Roman Dial | Ref. 279173

Reference 279173 distils the Lady-Datejust 28 to its most classical expression: Yellow Rolesor construction — Rolex's enduring pairing of Oystersteel and 18 ct yellow gold — carries a silver dial with Roman numeral hour markers beneath a fluted yellow gold bezel. There is nothing superfluous here; this is the Datejust aesthetic argument reduced to its essential terms, and its endurance across successive generations of the collection confirms the soundness of that argument.

Calibre 2236 powers the 279173 with the technical authority of a manufacture movement designed specifically for the Lady-Datejust family. Rolex developed the 2236 with a Syloxi silicon hairspring — a significant advancement over the Nivarox alloys it displaced — providing intrinsic antimagnetic performance and exceptional dimensional stability across temperature variation. The movement's self-winding mechanism operates bidirectionally for efficient winding, while the Cyclops lens at 3 o'clock magnifies the date display by 2.5× for immediate legibility. Oyster case construction and the Twinlock screw-down crown deliver water resistance to 100 metres.

The combination of Roman numerals and fluted bezel references the Datejust's earliest design vocabulary, connecting the 279173 directly to the aesthetic decisions Rolex made when the series launched in 1945. For collectors who understand that enduring style is distinct from trend-following fashion, this configuration represents one of the most considered choices in the Lady-Datejust range. Presented in Yellow Rolesor, its price accessibility relative to full gold references makes it a natural first acquisition for those building a long-term Rolex collection.