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

The Rolex Lady-Datejust is one of the most enduring icons in watchmaking history, introduced in 1957 as the first self-winding waterproof watch sized specifically for women. Descended directly from the original 1945 Datejust—the first wristwatch to display the date in a window at 3 o'clock—the Lady-Datejust carries nearly eight decades of horological and cultural significance on its slender case. Reference 179173-BKJDFO represents the 26mm generation of this lineage, combining proven Rolex engineering with a jeweler's sensibility.

The case of the 179173-BKJDFO measures a classic 26mm in diameter and is rendered in Rolex's Rolesor configuration—stainless steel for the case body and Oystersteel bracelet center links, joined by 18k yellow gold for the crown, bezel, and bracelet outer links. This two-tone pairing, which Rolex pioneered, makes the watch versatile enough to complement both precious metal jewelry and everyday steel accessories without the commitment of a fully gold timepiece.

The black dial is the defining visual statement of this reference. Against the deep, richly finished black surface, applied hour markers and hands in yellow gold create an immediate contrast that feels both luxurious and legible. The yellow gold fluted bezel—one of the Datejust's most recognizable design signatures since the very first model—frames the dial with a geometric, light-catching texture that elevates the watch from timekeeper to jewel. Together, black dial and fluted gold bezel produce one of the most dramatic dial-bezel pairings in the entire Lady-Datejust catalogue.

Beneath the Oyster case, an automatic self-winding movement keeps time with the precision and reliability that generations of Rolex wearers have come to expect. The Oyster bracelet, with its flat three-piece links, is one of the most ergonomically refined bracelets in the industry: secure on the wrist, comfortable in daily wear, and proportioned to complement the 26mm case without overwhelming it. The crown-and-Oyster case construction provides meaningful water resistance, making this a watch that can be worn confidently through the routines of everyday life.

Buying a pre-owned or gray-market Rolex Lady-Datejust 179173-BKJDFO from Bizak and Co. means acquiring a timepiece that has already proven its value retention and wearability. Bizak and Co. is an independent luxury watch dealer—not an authorized Rolex retailer—which means you benefit from market-rate pricing and expert curation without the authorized-dealer wait list. Our team sources each watch carefully, and we invite you to contact us directly to discuss condition reports, service history, and any questions you have before you buy.