Rolex Lady-Datejust 28 28 mm 279173SSO Steel/Yellow Gold Silver

The Rolex Lady-Datejust 28 is the definitive expression of feminine luxury watchmaking, and reference 279173SSO represents that ideal in its most classic form. Introduced as an evolution of the historic Lady-Datejust line, the 28mm case size strikes a precise balance: substantial enough to read beautifully on the wrist, refined enough to wear beneath a cuffed sleeve or alongside the most delicate jewelry. Rolex introduced the Lady-Datejust decades ago as the world's first self-winding waterproof wristwatch designed specifically for women, and each generation has refined that original vision without abandoning it.

The case of reference 279173SSO is rendered in what Rolex calls Rolesor—a signature two-tone construction pairing Oystersteel, Rolex's proprietary corrosion-resistant steel alloy, with 18k yellow gold. The fluted bezel is crafted entirely in 18k yellow gold, its vertically grooved surface catching light with every movement of the wrist and providing a warm, luminous frame for the dial. This bezel profile is one of the most historically significant in watchmaking, originally conceived as a functional feature to screw the bezel to the case and later elevated into a defining aesthetic icon.

The silver dial of the 279173SSO is understated and authoritative. Clean index hour markers—polished to reflect light precisely—sit against the smooth silver surface, lending the watch a sense of quiet confidence that suits both boardroom and black-tie occasions. The Datejust's signature date window, framed by a magnifying Cyclops lens on the crystal, appears at the three o'clock position, grounding the design with the utilitarian precision that has made the Datejust the world's best-recognized watch.

Beneath the Oyster case, an automatic movement drives the watch with the reliability that Rolex's manufacture calibers are renowned for. The movement is protected by the Oyster case to 100 meters (330 feet) of water resistance, making this Lady-Datejust genuinely wearable in everyday life—not a fragile dress piece to be left in a drawer. The Oyster bracelet completes the package: three-row links in matching Oystersteel and yellow gold, secured by the Crownclasp for a comfortable, secure fit that resists the stretch and loosening common in lesser bracelets.

For collectors and first-time luxury watch buyers alike, the Lady-Datejust 28 in reference 279173SSO represents one of the most intelligent acquisitions in the market. Rolex Rolesor references consistently hold value, the two-tone aesthetic has proven immune to fashion cycles, and the 28mm Oyster case is among the most thoroughly engineered watch cases ever produced. Whether you are purchasing your first Rolex or adding a daily-wear complement to a larger collection, this reference delivers heritage, craftsmanship, and wearability in equal measure.

At Bizak & Co., we specialize in sourcing and presenting exceptional timepieces like the Lady-Datejust 28 ref. 279173SSO for discerning buyers across the United States. Our team is available to answer every question about this reference, provide additional photographs, and guide you through a secure purchase at bizakandco.com. Please note that Bizak & Co. is not an authorized Rolex dealer; all trademarks belong to Rolex SA.