Crafted in Rolex's Yellow Rolesor construction, the 28mm Oyster case blends Oystersteel with yellow gold throughout. The bezel is set with diamonds, while a scratch-resistant sapphire crystal with a Cyclops lens over the date protects the white dial beneath. A screw-down winding crown with Twinlock double waterproofness and a screw-down case back contribute to water resistance rated to 100 metres / 330 feet.
The white dial features Roman numeral hour markers, and the date display is driven by Rolex Calibre 2236 — a perpetual, mechanical, self-winding movement with bidirectional winding via a Perpetual rotor. It achieves a precision of -2/+2 seconds per day after casing, carries Superlative Chronometer certification (COSC plus Rolex certification after casing), and offers a power reserve of approximately 55 hours. The oscillator uses a Syloxi silicon hairspring with patented geometry alongside high-performance Paraflex shock absorbers.
The Jubilee bracelet, built from five-piece links in Yellow Rolesor, fastens with a concealed folding Crownclasp for a secure and streamlined fit. Reference 279383RBR-0023 brings together the Lady-Datejust's hallmark proportions with the warmth of yellow gold detailing and the brilliance of a diamond-set bezel.
