The Rolex Datejust 31, reference 278278-0011, is cased in 31 mm yellow gold, with an olive green dial set with diamonds and a fluted bezel, on a President bracelet. It is powered by the automatic Calibre 2236 movement. Complications: Date display, Cyclops lens. Water-resistant to 100 m (330 ft). Maker: Rolex. Reference: 278278-0011. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request. Case Size: 31 mm. Case Material: yellow gold. Movement: Automatic — Calibre 2236. Dial: Olive green set with diamonds. Bezel: Fluted bezel. Bracelet/Strap: President. Complications: Date display; Cyclops lens. Clasp: Concealed folding Crownclasp. Water Resistance: 100 m (330 ft).