Rolex Lady-Datejust 26 26 mm 179173-BLUCAJ Steel/Yellow Gold Blue

The Rolex Lady-Datejust is one of the most enduring icons in watchmaking, tracing its lineage directly to the Datejust introduced in 1945 — the first self-winding wristwatch to display the date in a window at 3 o'clock. The Lady-Datejust 26 carries that storied heritage forward in a refined 26 mm case scaled for the wrist, preserving every technical and aesthetic principle that has made the Datejust the world's most recognised dress watch.

Reference 179173-BLUCAJ pairs a stainless steel case and case back with yellow gold crown guards, bezel, and bracelet centre links — the Rolesor construction Rolex has perfected over decades. The yellow gold fluted bezel is not merely decorative; its serrated profile was originally designed to screw the bezel onto the case and provide additional water resistance, and it remains the signature detail that instantly identifies a Datejust at a glance. The result is a watch that reads as both sporty and luxurious without compromise.

The dial is the centrepiece of this reference and a key reason collectors seek it out. The blue concentric-circle surface catches the light dynamically, shifting in depth and intensity as the viewing angle changes, while the Arabic numeral hour markers add a touch of legibility and a slightly bolder character compared with the more common baton or Roman options. This BLUCAJ designation makes the reference especially distinctive in the Lady-Datejust family.

Powering the watch is a Rolex automatic movement, providing the effortless self-winding convenience that has made Rolex synonymous with reliability. The case carries a water resistance rating of 100 metres (330 feet), delivered by the Twinlock crown system and the Oyster case construction, meaning this Lady-Datejust is far more than a fragile dress piece — it is built to accompany an active, modern lifestyle without reservation.

The five-link Jubilee bracelet completes the watch with Rolex's most refined and historically resonant bracelet design, characterised by its elegant articulation and comfortable drape on the wrist. Every detail — the polished and brushed surface interplay, the fine clasp, the tuck of the hidden folding Crownclasp — speaks to the level of craft that justifies the Datejust's status as the quintessential luxury watch.

At Bizak & Co., we curate only the most desirable references for discerning buyers who want to purchase a Rolex Lady-Datejust 26 online with confidence. Whether you are buying your first luxury watch or adding a standout two-tone piece to an established collection, reference 179173-BLUCAJ represents a compelling opportunity. Reach out to our team directly — we are here to answer every question and ensure your acquisition is seamless from inquiry to delivery.