Rolex Lady-Datejust 31 31 mm 278243SDJ Steel/Yellow Gold Silver

The Rolex Lady-Datejust is one of the most storied references in Swiss watchmaking, representing the first self-winding waterproof wristwatch created specifically for women when Rolex introduced the line in 1957. For nearly seven decades it has remained the definitive expression of understated luxury at the 31mm scale—large enough to read with clarity, refined enough to wear with anything—and every new generation of the reference reaffirms Rolex's commitment to impeccable craftsmanship and enduring style.

Reference 278243SDJ exemplifies the two-tone philosophy that has captivated watch enthusiasts since Rolex first paired Oystersteel with 18k yellow gold. The cool, highly polished steel case provides durability and a modern sharpness, while the warm yellow gold of the domed bezel and select bracelet links introduces a richness that elevates the watch from mere timekeeping instrument to genuine jewelry. This interplay of metals is unmistakable on the wrist and speaks directly to buyers who want versatility without sacrificing presence.

The silver dial is a masterclass in restrained elegance. Its clean surface catches light in a way that is never brash, offering excellent legibility whether the watch is read across a conference table or glanced at during an evening out. The dial architecture is classic Lady-Datejust: a well-proportioned date window at three o'clock, the signature Rolex coronet at twelve, and hour markers that anchor the composition without crowding it. Every detail is executed with the precision that has made Rolex the benchmark against which other watchmakers measure themselves.

Beneath the case, an automatic movement keeps the Lady-Datejust running with the reliability Rolex is famous for worldwide. The case is water resistant to 100 meters (330 feet), reinforcing the watch's credentials as a true Oyster—equally at home in everyday life as in more demanding environments. The five-link Jubilee bracelet, developed by Rolex in 1945 specifically for the Datejust, completes the picture: its supple articulation and alternating polished and satin-finished links drape elegantly on the wrist and remain one of the most recognizable bracelet designs in the luxury watch world.

Bizak & Co. offers this Rolex Lady-Datejust 31 reference 278243SDJ in brand-new, certified authentic condition. When you buy online through Bizak & Co., you receive not only a stunning timepiece but also the assurance of a team of dedicated watch specialists who stand behind every sale. Whether you are adding to an established collection, marking a milestone occasion, or searching for the perfect gift, this reference is a sound choice that appreciates in desirability over time. Reach out to our team to confirm availability, discuss financing options, or arrange secure shipping—we are here to make your acquisition as seamless and satisfying as the watch itself.