The Rolex Lady-Datejust 26 Ref. 179173 in the BMDJ configuration is a highly luxurious and unique timepiece from the previous 26 mm generation, showcasing the classic two-tone combination of Yellow Rolesor (Oystersteel and 18K Yellow Gold). The watch is framed by the signature 18K Yellow Gold Fluted Bezel, a defining Rolex feature that provides brilliant light reflection. The dial is the showpiece: a distinctive Black Mother-of-Pearl (MOP) finish . This rare, naturally sourced material offers deep, shifting colors and dark iridescence, ensuring that no two dials are exactly alike. The dial’s opulence is completed by sparkling Diamond Hour Markers, set in 18K Yellow Gold, offering maximum brilliance against the mysterious MOP background.
Key Features
| Case | Material | Yellow Rolesor (Oystersteel and 18K Yellow Gold) |
| Dimensions | ( ) |
|
| Water Resistance | ( ) | |
| Bezel | Fluted 18K Yellow Gold (Rolex’s signature design) | |
| Crystal | – | |
| Reference | 179173BMJDJ | |
| Dial | Color | Black Mother-of-Pearl (MOP) (Dark, iridescent natural material) |
| Markers | Diamond Hour Markers (in 18K Yellow Gold) | |
| Aesthetic | Mysterious, shimmering MOP dial with dazzling diamond markers | |
| Movement | Type | Perpetual, mechanical, self-winding |
| Power Reserve | Approximately |
|
| Caliber | ( ) | |
| Technology | ||
| Bracelet/Strap | Material | Jubilee Yellow Rolesor (five-piece links) |
| Clasp | Concealed folding Crownclasp | |
| Additional Info | Watch Style | High-Luxury Two-Tone Dress Watch / Unique Natural Dial |
| Certification | ||
| Key Features | Fluted Bezel, Black MOP Diamond Dial, Jubilee Bracelet, Yellow Rolesor | |
| Rolesor | () () |










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