Rolex Yellow Gold Datejust 31 Watch - Fluted Bezel - Dark Grey Diamond Six Dial - President Bracelet - 278278 dkgdr6p Defy 45 mm carbon fiber and

45 mm carbon fiber and texalium® upper layer case

38 mm brushed stainless steel and 18K yellow gold case

Caliber RMAL1

black composite resin lower bezel

Rolex Yellow Gold Datejust 31 Watch - Fluted Bezel - Dark Grey Diamond Six Dial - President Bracelet - 278278 dkgdr6p Defy 45 mm carbon fiber and31mm 18K yellow gold case, screw down crown with twinlock double waterproofness system, fluted bezel, scratch resistant sapphire crystal with cyclops lens over the date, dark grey diamond Roman IV dial, Roman numerals with 11 diamonds set on VI, Rolex calibre 2236 automatic movement with center hour, minute and seconds hands, instantaneous date with rapid setting, and stop seconds for precise time setting, approximately 55 hours of power reserve, 18K