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

The Rolex Lady-Datejust is one of the most enduring icons in watchmaking, introduced by Rolex as the first self-winding waterproof wristwatch with a date display scaled specifically for women. Across decades it has remained the definitive expression of refined femininity on the wrist, blending technical precision with classical elegance in a way that no other brand has matched at this price point. Reference 179173-BLKSJ belongs to the 26mm generation of the Lady-Datejust, a case diameter that has been the heartbeat of the line for generations and that sits with perfect proportion on a wide range of wrist sizes.

The case of reference 179173-BLKSJ is crafted in Rolex's proprietary Oystersteel paired with 18k yellow gold, a combination Rolex calls Rolesor. This two-tone construction appears on the case, the crown, and most visibly on the fluted bezel, which is rendered entirely in polished 18k yellow gold. The fluted bezel is one of Rolex's most storied design signatures, originally developed to screw the bezel onto the case for a watertight seal and later refined into a purely aesthetic hallmark that signals heritage and status at a glance.

The black dial gives this reference its distinctive personality. Deep and lustrous, the black surface provides a high-contrast backdrop for the index hour markers, creating a dial that reads crisply in any light while projecting understated drama on the wrist. Black-dialed Lady-Datejust references are perennially sought after because they balance classic Rolex architecture with a bolder visual statement that works equally well against business attire or evening dress.

Powering the watch is Rolex's automatic movement, delivering the self-winding convenience and reliability that collectors and everyday wearers have come to expect from Geneva's most accomplished manufacture. The watch is rated to 100 meters (330 feet) of water resistance courtesy of the Oyster case construction, meaning it handles daily life, rain, and recreational swimming without concern. The Jubilee bracelet, one of Rolex's most beloved designs with its five-piece link construction, adds a final layer of elegance and comfort that has made it the preferred choice for Lady-Datejust wearers for decades.

For collectors and first-time buyers alike, the 179173-BLKSJ represents a compelling entry into genuine Rolex ownership. The two-tone Rolesor configuration and black dial combination historically retains strong desirability in the pre-owned market, making this reference as sound an investment in style as it is in horological quality. Bizak & Co. is proud to offer this Lady-Datejust to discerning buyers across the United States.

At Bizak & Co. we source, authenticate, and present luxury timepieces with the care and expertise our clients deserve. Whether you are buying your first Rolex or adding a classic Lady-Datejust to an established collection, our team is here to guide you through every step. Browse reference 179173-BLKSJ for sale at bizakandco.com or reach out directly to discuss pricing, condition details, and shipping — we are committed to making the purchase of a fine watch as refined as the watch itself.