Rolex Datejust 31 White Rolesor — White Roman Dial, 24-Diamond Bezel | Ref. 178344

Epitomising Rolex's jewellery-forward design philosophy in the 31mm format, reference 178344 in White Rolesor — Oystersteel paired with 18ct white gold — presents a white dial bearing Roman numeral hour markers beneath a factory-set 24-diamond bezel. The white-on-white aesthetic creates a luminous, cohesive palette that has made this configuration one of the most sought-after within the mid-size Datejust family. The diamond bezel, with stones set in individual gold cups, captures light with a brilliance that the standard fluted profile cannot match.

The movement is Calibre 2235, Rolex's self-winding calibre for the 31mm Datejust series. Built on a lineage stretching back to the original Cal. 2235's development, this movement features a Parachrom hairspring — Rolex's proprietary paramagnetic alloy that is ten times more resistant to shocks than conventional steel — along with Paraflex shock absorbers and a power reserve of approximately 55 hours. Superlative Chronometer certification ensures daily accuracy within ±2 seconds.

The 178344 occupies prime territory in the pre-279xxx Datejust 31 catalogue: a reference that was discontinued when the current 278xxx generation was introduced, lending vintage scarcity to a relatively modern timepiece. The White Rolesor case construction — polished Oystersteel body with white gold crown and diamond bezel setting — offers an entry point into Rolex's precious metal universe with significantly greater durability than full gold alternatives. For collectors who prize understated luxury over ostentation, this reference remains a quietly powerful statement of refinement.