Rolex Datejust 31 Yellow Gold — Olive Green Diamond Dial with Diamond Bezel | Ref. 278288RBR

The 278288RBR is among the most lavishly specified configurations available within the Datejust 31 lineup, combining a factory diamond bezel with an olive green dial itself paved with diamond hour markers, all housed within an 18ct yellow gold Oyster case. Olive green is a relatively recent addition to Rolex's dial colour palette — introduced as part of a broader push into unconventional naturalistic hues — and it reads as sophisticated and contemporary against the warm yellow gold case and bracelet. The RBR suffix designates the brilliant-cut diamond bezel, which replaces the traditional fluted option with a continuous row of factory-set stones, delivering significantly heightened visual impact.

Underneath, the Calibre 2236 provides the horological substance. This movement, developed specifically for the 31mm and smaller Datejust cases, beats at 28,800 vph and delivers Superlative Chronometer accuracy. The Syloxi hairspring — manufactured by Rolex in silicon — contributes to the calibre's robustness and precision, resisting the two principal enemies of hairspring performance: magnetism and thermal drift. The yellow gold case follows the classic Oyster architecture, with polished and satin-finished surfaces alternating across the case flanks and lugs. The matching Jubilee bracelet in yellow gold provides a luxurious yet secure fit.

On the secondary market, the 278288RBR in olive green represents a watch that sits at the boundary between horology and high jewellery. Demand for unusual dial colours in diamond-set configurations has intensified markedly in recent years, particularly among buyers in Asian markets and among a younger collector demographic drawn to expressive colour choices. The combination of olive green, diamonds, and yellow gold is genuinely scarce in pre-owned inventories, offering potentially strong appreciation dynamics for buyers acquiring a complete example with original box and papers.