Rolex Datejust 31 mm

The Rolex Datejust 31 mm, reference 278288RBR-0022, comes in 18 ct yellow gold with a diamond-set bezel. The case measures 31 mm across and pairs with a champagne-colour dial. A self-winding movement, calibre 2236, drives the watch and carries a power reserve of approximately 55 hours; Rolex certifies it as a chronometer. The date sits under a Cyclops lens on the scratch-resistant sapphire crystal, with central seconds shown on the dial. Diamonds also appear on the bezel, set by hand into the gold. A screw-down crown seals the case. The watch is fitted to a President bracelet in yellow gold with a concealed folding Crownclasp. The screw-down crown also helps hold the case to its 100 metre water resistance rating.