The Rolex Oyster Perpetual Lady-Datejust emerges today as a descendant from the very first Rolex Oyster. The petite 28mm diameter of the 1957 Lady-Datejust was perfect for slender wrists, and so this iconic size has stood the test of time to define the collection as it is today. The Lady-Datejust is one of the most varied lines in the Oyster Perpetual collection, distinguished by its elegance and refinement, and remains only in 28mm. All Lady-Datejust watches feature the signature instantaneous date changing system, along with the Cyclops lens to magnify the watch’s emblematic date display two and a half times for easy reading.

Available in Oystersteel, 18 ct yellow or Everose gold, or in Rolesor versions that combine both Oystersteel and gold, the Lady-Datejust comes in a wealth of versions to perfectly reflect the different personalities of its wearers, with a stunning range of bracelets, bezels and subtle dials that enhance its style.

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Similarly, since the time of Mercedes Gleitze, Rolex has been associated with a diverse group of women with undeniable substance. From marine biologist Dr Sylvia Earle and sitar-player Anoushka Shankar to pianist Yuja Wang and professional golfer Lexi Thompson, these inspiring Rolex Testimonees are trailblazers in their respective fields with impressive achievements. The list of exceptional women associated with Rolex and the Lady-Datejust goes beyond the aforementioned names. Despite their diverse personalities, you might use the same words to describe these women — graceful and precise, for example — as you would describe any Lady-Datejust.

However, the qualities of the Lady-Datejust far surpass mere words. At its core, the Lady-Datejust shares the same unmatched reliability and precision as every Superlative Chronometercertified Rolex timepiece that preceded it. All versions are guaranteed waterproof to a depth of 100 metres (330 feet), which is an unparalleled achievement for an elegant dress watch. The hermetically sealed screwed down case back and the patented Twinlock winding crown, fitted with a double waterproofness system, are responsible for this robustness.

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Inside the watches, the self-winding mechanical calibre 2236 is just as impressive as the case, if not more so. Developed and built entirely in-house by Rolex, calibre 2236 offers outstanding performance in terms of precision, power reserve, resistance to shocks and magnetic fields, convenience and reliability. The power reserve of approximately 55 hours is class-leading for watches of this size, and the motion of the wearer provides all the energy the watch needs to keep it ticking perpetually.

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With regards to precision, calibre 2236 is officially certified as a chronometer by the Swiss Official Chronometer Testing Institute (COSC). Each movement is tested by Rolex after being cased, to ensure that it meets criteria that are far stricter than those of the official certification. The precision of a Rolex Superlative Chronometer is of the order of −2/+2 seconds per day — the rate deviation tolerated by the brand for a finished watch is significantly smaller than that accepted by COSC for official certification of the movement alone.

A perfect alchemy of form and function, the Lady-Datejust remains a contemporary classic since its launch in 1957, designed and created for the wrists of modern, graceful and accomplished women.

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