Rolex Lady-Datejust 31 31 mm 278243WRO Steel/Yellow Gold White

The Rolex Lady-Datejust is one of the most enduring icons in watchmaking history, introduced in 1957 as the first self-winding, waterproof watch created specifically for women. Over nearly seven decades the Lady-Datejust has retained its core architecture — the Oyster case, the cyclops date lens, the signature Datejust fluted or domed bezel — while evolving with new materials, dial options, and refinements that keep it firmly at the forefront of luxury dress watches. The 31mm case size sits comfortably between the classic 28mm Lady-Datejust and the full-size 36mm Datejust, offering a mid-size option that reads with authority on the wrist without sacrificing elegance.

Reference 278243WRO represents the contemporary generation of the Lady-Datejust 31, dressed in Rolex's proprietary two-tone Rolesor construction. Rolesor pairs an Oystersteel case and Oyster bracelet with yellow gold elements — here expressed in a domed bezel and the characteristic mixed-metal link arrangement of the Oyster bracelet — to create a watch that is simultaneously sporty and dressy. The white dial is a perennial best-seller in the Datejust family, offering maximum legibility against any outfit and a sense of light, airy refinement that distinguishes it from bolder lacquer or gem-set alternatives.

The movement driving reference 278243WRO is an automatic caliber developed and manufactured entirely in-house at Rolex's facilities in Geneva and Bienne. Rolex automatic movements are chronometer-certified by the Swiss Official Chronometer Testing Institute (COSC) and further tested to Rolex's own Superlative Chronometer standard after casing, ensuring precision and reliability that go far beyond industry norms. The Oyster case provides 100 meters (330 feet) of water resistance, sealed by a screw-down crown and case back, making this Lady-Datejust genuinely versatile for daily life.

On the wrist, the 31mm Rolesor Lady-Datejust 31 in reference 278243WRO strikes the ideal balance between presence and femininity. The Oyster bracelet in steel with yellow gold center links lies flat and articulates smoothly, secured by Rolex's Oysterclasp for a secure, refined fit. The yellow gold domed bezel frames the white dial with warmth, drawing the eye inward toward the date window at three o'clock, magnified by Rolex's cyclops lens for effortless reading. This is a watch that looks equally at home with a tailored suit, evening wear, or casual weekend attire.

Buying this certified authentic, brand-new Rolex Lady-Datejust 31 reference 278243WRO from Bizak & Co. means acquiring one of the world's most recognized and appreciated luxury timepieces at a trusted source that specializes in exactly this caliber of watch. Bizak & Co. stands behind the authenticity and condition of every piece offered. Reach out to our team for pricing, availability, and to begin your acquisition process — we are here to make your Rolex purchase exceptional from first inquiry to final delivery.