The Rolex Lady-Datejust 28 Ref. 279166 in the SRDP configuration is an exceptionally rare and exclusive timepiece, distinguished by its comprehensive construction entirely in Platinum 950. This noble metal, denser and rarer than gold, gives the modern 28 mm case and the entire structure a unique, subtle, cool luster and an incomparable, substantial weight on the wrist. The watch’s refined design is highlighted by the Smooth/Domed Platinum Bezel, providing a sleek, polished frame that allows the dial’s exquisite detailing to take center stage.
The centerpiece is the sophisticated Silver Sunray Finish Star/Diamond Dial. This bright, pristine silver hue offers a timeless and highly reflective canvas, perfectly harmonizing with the cool tones of the Platinum. The time is opulently indicated by 10 brilliant-cut diamond indices, each meticulously set in high-grade Platinum. The complex SRDP suffix suggests an elevated style of diamond setting, often including star-shaped settings or a mixture of cuts, defining an aesthetic that is discreetly luxurious yet profoundly spectacular.
Key Features
| Case | Material | Platinum 950 (Solid Platinum Construction) |
| Dimensions | 28 mm (Modern generation size) | |
| Water Resistance | ( ) | |
| Bezel | Smooth/Domed Platinum (Sleek, highly polished finish) | |
| Crystal | – | |
| Reference | 279166SRDP | |
| Dial | Color | Silver (Sunray finish, timeless and refined) |
| Markers | Star/Diamond Set Hour Markers (in Platinum settings, often 10 diamonds) | |
| Aesthetic | Silver dial with diamond markers and a sleek smooth platinum bezel | |
| Movement | Type | Perpetual, mechanical, self-winding |
| Power Reserve | Approx. 55 hours | |
| Caliber | Calibre 2236 (Modern movement with Syloxi hairspring) | |
| Technology | Superlative Chronometer | |
| Bracelet/Strap | Material | President (semi-circular three-piece links) in 18K White Gold |
| Clasp | Concealed folding Crownclasp | |
| Additional Info | Watch Style | Platinum High-Jewelry Dress Watch (Rolex’s ultimate luxury metal) |
| Certification | ||
| Key Features | Full Platinum 950, Smooth Bezel, Silver Diamond Dial, President Bracelet | |
| Construction | All components (Case, Bezel, Bracelet) are Platinum 950 |











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