Rolex Datejust 31 Yellow Rolesor — Silver Diamond Dial | Ref. 278343

This Datejust 31 in Ref. 278343 presents a lighter, more luminous alternative to the champagne variant within the same Yellow Rolesor framework: a silver diamond dial — with brilliant-cut diamond hour markers set at the factory — housed beneath a domed diamond bezel. Silver dials in the Datejust 31 family reflect light with exceptional clarity, giving the watch a brightness and legibility that warmer-toned dials do not replicate. The interplay between yellow gold accents and a cool silver ground is a classic Rolex contrast that has endured across multiple generations.

At the heart of the 278343 is Calibre 2236, Rolex's dedicated 31mm movement featuring the Syloxi silicon hairspring. The Syloxi oscillator is entirely non-magnetic and requires no lubrication at its contact points, reducing service intervals and improving long-term precision. A 55-hour power reserve gives comfortable autonomy over a long weekend. The Oyster bracelet option in Rolesor balances the yellow gold case and bezel with the steel links of the main body, providing both durability and a sportier visual register than the Jubilee.

Factory diamond-dial examples of the current-generation Datejust 31 are produced in significant variety, but demand consistently outpaces supply for the diamond-and-diamond combination — both bezel and dial set — in the core Rolesor metals. The silver diamond configuration appeals to those who want maximum sparkle without straying into coloured-stone territory. Secondary market pricing reflects that premium, with clean examples trading well above those with single-element decoration.