Rolex Lady-Datejust 26 26 mm 179173-BLKDO Steel/Yellow Gold Black Rolex Lady-Datejust 26 26 mm 179173-BLKDO Steel/Yellow…

The Rolex Lady-Datejust ref. 179173-BLKDO is a definitive expression of the world's most recognized luxury dress watch scaled to 26mm — the classic proportions that have defined the Lady-Datejust since Rolex introduced the women's Datejust in 1957. Built on the same Oyster architecture that made the original Datejust an icon, this reference pairs stainless steel with yellow gold in Rolex's signature Rolesor configuration, delivering the durability of steel alongside the warmth and prestige of gold.

The dial of the 179173-BLKDO is one of its most compelling attributes. The black diamond-set dial creates a deep, dramatic backdrop against which the hour markers and hands stand in sharp relief, offering legibility and visual opulence in equal measure. Diamond indexes on a black dial are a hallmark of Rolex's finest Lady-Datejust configurations and make this reference a genuine statement piece on the wrist.

Framing the dial is a yellow gold fluted bezel — one of the most iconic design elements in Rolex's entire catalog. The fluted pattern was originally conceived to screw the bezel down and waterproof the case; today it endures as a symbol of Rolex craftsmanship and heritage, machined from solid yellow gold and polished to a brilliant finish that catches the light with every movement of the wrist.

Powering the 179173-BLKDO is a Rolex automatic movement, delivering the self-winding reliability that collectors and wearers have trusted for decades. The watch is water resistant to 100 meters (330 feet) courtesy of the Oyster case — a robust, hermetically sealed construction that makes this Lady-Datejust as practical as it is beautiful. The Oyster bracelet completes the package, offering a secure and comfortable fit in the same two-tone steel and yellow gold aesthetic as the case.

At 26mm, the Lady-Datejust 179173-BLKDO sits at the heart of Rolex's women's sizing tradition — refined, proportionate, and universally elegant on the wrist. It layers effortlessly over couture and suits alike, equally at home at a board meeting or a black-tie event, making it among the most versatile luxury watches a collector can own.

Bizak & Co. specializes in authentic pre-owned and unworn luxury Rolex timepieces, and the Lady-Datejust 179173-BLKDO exemplifies the caliber of watch we source for our clientele. Please note that Bizak & Co. is not an authorized Rolex dealer. We invite you to browse this reference at bizakandco.com, reach out with any questions, and discover why discerning buyers trust Bizak & Co. to find, verify, and deliver exceptional Rolex watches.