Rolex Datejust 31 Yellow Rolesor — Silver Diamond Dial | Ref. 278243

Reference 278243 positions the Datejust 31 in an accessible yet unmistakably luxurious register: Yellow Rolesor — Oystersteel combined with 18 ct yellow gold — paired with a silver dial set with diamond hour markers. The warm tonality of yellow gold against the cool silver dial creates a time-honoured contrast that has defined two-tone Datejust aesthetics for generations, while the factory diamond indices elevate the specification above the standard index-dial configuration without tipping into full jewellery-watch territory.

Inside, Calibre 2236 drives the 31 mm Oyster case — Rolex's current-generation calibre for this diameter, equipped with a Syloxi silicon hairspring for superior thermostability and a 55-hour power reserve, improving on the earlier 2235 in both efficiency and longevity. The Superlative Chronometer certification ensures ±2 seconds per day performance — a standard that comfortably exceeds COSC requirements and underpins the confidence buyers place in Rolex across the size range. The Jubilee bracelet in Yellow Rolesor echoes the dial's tonal warmth and delivers a five-link comfort profile that has been synonymous with the Datejust since its introduction.

The Yellow Rolesor Datejust 31 with diamond indices represents a logical step for collectors who have outgrown simple steel but are not yet ready to commit to a full solid-gold reference. It offers genuine two-metal prestige, factory gem-setting credentials, and the contemporary 2236 movement — a combination that positions it well in both the primary and pre-owned markets. Well-preserved examples with box and papers hold their value reliably, supported by the near-universal desirability of the Datejust name across collector demographics.