Rolex Lady-Datejust 28 Gold — Diamond Bezel Sundust Roman Dial | Ref. 279135RBR

The Lady-Datejust 28, reference 279135RBR, represents Rolex's jewellery-watch mastery at its most refined. The 28 mm case in 18-carat gold carries a bezel set with forty-four individually selected diamonds — each stone assessed for cut, clarity, colour, and carat weight before earning its place on the timepiece — framing a sundust dial that glows with a warm, sand-toned luminosity. Roman numeral hour markers in a classical serif typeface lend the dial an elegant antiquarian character that suits the jewelled setting beautifully.

At the heart of the 279135RBR beats the Calibre 2236, Rolex's proprietary ladies' movement developed in-house and introduced in 2015. The 2236 incorporates the Syloxi hairspring — a silicon component manufactured using micro-electromechanical systems (MEMS) technology — which offers exceptional resistance to magnetic fields and thermal variation. Self-winding via a bidirectional rotor, the 2236 is certified as a Superlative Chronometer, meaning it meets Rolex's internal precision criteria of -2/+2 seconds per day following complete assembly and testing in the finished watch case.

The 279135RBR variant, identified by the RBR suffix denoting its diamond-set bezel configuration, is among the most desirable Lady-Datejust expressions for collectors who appreciate the intersection of precious gem-setting and mechanical accomplishment. Sundust dials with Roman numerals enjoy consistent demand for their blend of warmth and classical formality, making this reference an outstanding choice for a collector seeking a jewelled Rolex of long-term significance.