Rolex Datejust 31 Rolesor — Dark Grey Dial with Fluted Bezel | Ref. 278274

Reference 278274 positions the Datejust 31 as an ideal choice for those who find the 36 mm slightly generous and the 28 mm Lady-Datejust too compact — a 31 mm case in White Rolesor that threads elegantly between the two. The combination of Oystersteel and 18 ct white gold is animated here by the fluted bezel, whose sharp ridges are machined from white gold and polished to emphasise each facet. Against this bright frame, the dark grey index dial provides depth and modernity, its applied hour markers creating a sophisticated contrast that reads clearly across any lighting condition.

Calibre 2236 sits at the heart of this reference, Rolex's manufacture movement engineered specifically for the midsize Datejust. The Syloxi hairspring — produced entirely in-house from a silicon composite — is the technical highlight, offering isochronal precision unaffected by magnetic fields and delivering stable amplitude across temperature variation. The perpetual rotor winds the mainspring bidirectionally, and the movement carries the Superlative Chronometer certification, guaranteeing accuracy to ±2 seconds per day after final casing and regulation.

The 31 mm Datejust occupies an interesting collector space: historically positioned as a ladies' size, contemporary wearers of all genders have embraced it as a refined alternative to larger sportier references. Reference 278274's dark grey dial and white Rolesor construction give it a cooler, more urban aesthetic than warm-toned variants, appealing to collectors who favour understated elegance. The fluted bezel in white gold adds precious metal character without overwhelming the dial — a configuration that ages gracefully and maintains broad secondary market appeal.