Rolex Steel and Yellow Gold Rolesor Lady-Datejust 28 Watch - Fluted Bezel - Silver Index Dial - Oyster Bracelet - 279173 sioThe two tone Rolesor construction of reference 279173 represents a significant evolution in the Lady Datejust lineage, combining Oystersteel foundations with 18k yellow gold accents in the refined 28mm case format introduced in 2016. This unworn example showcases the enduring appeal of the silver index dial configuration, which has remained virtually unchanged since the Datejust's inception in 1945, now rendered in the contemporary proportions that

This 41mm rose gold masterpiece houses one of haute horlogerie's most sophisticated annual calendar movements

Chronograph Caliber CH 28-520 C — Self-winding movement with column wheel construction

Champagne Wave Dial — Sunburst-finished dial surface with radial brushing creates dynamic light reflection

37mm White Gold Case — Mid-size proportions with polished and brushed surfaces

Diamond-Set Bezel — Brilliant-cut diamonds create a luminous frame around the blue dial

and President bracelet showcase Rolex's mastery of precious metal manufacturing and finishing

Blue Sunburst Dial — The radial brushed finish creates dynamic color variations from navy to bright blue depending on lighting conditions

Rose Gold Case Construction — 40mm solid case crafted from Patek Philippe's proprietary rose gold alloy

and day/night indication

Black Lacquer Dial — Features applied gold hour markers and Mercedes-style hands with Chromalight luminescence for enhanced underwater visibility

40mm Yellow Gold Case — Solid 18k yellow gold construction with polished finish

36mm Presidential Case — The classic Day-Date proportions with polished sides and lugs