Rolex Datejust 31 White Gold — Fluted Bezel Purple Diamond Roman Dial | Ref. 178279

Reference 178279 in 18-carat white gold takes on a particularly striking character when fitted with a purple diamond dial and Roman numeral hour markers — a combination that melds classical typographic tradition with jewel-toned luxury. The fluted bezel, one of the most enduring motifs in the Rolex catalogue since its introduction in the 1950s, encircles the 31 mm Oyster case in cool white gold that amplifies the violet depth of the dial beneath. Roman numeral markers at twelve and six, set at the VI position in a bold serif face, anchor the dial with a scholarly gravitas that complements the jewelled exuberance of the diamond setting.

Within the white gold Oyster case, Calibre 2235 performs its self-winding function with the quiet authority characteristic of all Rolex Superlative Chronometers. The movement's Parachrom hairspring — crafted in a proprietary paramagnetic alloy — resists the performance-degrading effects of magnetic exposure and is approximately ten times more shock-resistant than a conventional spring of the same geometry. Rolex's in-house testing validates each movement to -2/+2 seconds per day after casing, a standard that far exceeds COSC chronometer certification.

Among the mid-size Datejust references, examples in white gold with coloured diamond dials are among the most frequently requested by collectors building jewellery-watch wardrobes. Purple diamond dials are comparatively uncommon, lending the 178279 in this configuration a degree of scarcity that enhances its collectability. The combination of white gold, fluted bezel, and purple gem-set dial is one of the most harmonious in the Datejust range.