caliber 8800 self-winding Co-Axial chronometer movement with date function
index hour markers with Chromalight
lacquered black dial includes unique transferred Roman numerals and rhodium-plated hands
convex sapphire crystal with antireflective coating on both sides
Rolex Yellow Gold Datejust 31 Watch - Diamond Bezel - Champagne Diamond Dial - President Bracelet - 278288RBR chdp Marquetry caliber 8800 self-winding Co-Axial chronometer31mm 18K yellow gold case, screw down crown with twinlock double waterproofness system, bezel set with 46 diamonds, scratch resistant sapphire crystal with cyclops lens over the date, champagne dial, 10 diamond hour markers, 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 yellow gold President