The Rolex Lady-Datejust 28 Ref. 279166 in the IBLRDP configuration is an extraordinarily rare and exclusive timepiece, defined by its comprehensive construction entirely in Platinum 950. This noble metal, significantly 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 distinguished design is characterized by the sleek, highly polished Smooth/Domed Platinum Bezel, which provides a minimalist yet luxurious frame, directing full attention to the classical dial.
The centerpiece is the signature Ice Blue Sunray Finish Diamond/Roman Dial . This distinct, soft metallic blue hue, often referred to as Glacier Blue, is a color reserved exclusively by Rolex for timepieces cased entirely in Platinum. The unique, cool-toned backdrop is opulently finished with a combination of refined Applied Roman Numerals and brilliant-cut Diamond Indices, meticulously set in high-grade Platinum. The complex IBLRDP suffix suggests a blend of diamond markers (usually at 6 and 9 o’clock) and Roman numerals, defining an aesthetic that is both deeply luxurious and uniquely formal.
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 | 279166IBLRDP | |
| Dial | Color | Ice Blue (Glacier Blue) (Sunray finish, exclusive to Platinum models) |
| Markers | Mixed Diamond and Roman Numerals (in Platinum settings) | |
| Aesthetic | Exclusive Ice Blue dial with mixed 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 Classic Dress Watch (Rolex’s ultimate luxury metal) |
| Certification | ||
| Key Features | Full Platinum 950, Smooth Bezel, Ice Blue Mixed Dial, President Bracelet | |
| Construction | All components (Case, Bezel, Bracelet) are Platinum 950 |










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