caliber 1904-CH MC self-winding movement with calendar aperture at 6 o'clock
three subdials and a date window at 6 o'clock
7 mm sedna gold case
grey sun-brushed dial with diamond polished 18K yellow gold indexes and hands
embellished by gold accents at the hands and hour markers
Rolex Yellow Gold Datejust 31 Watch - Diamond Bezel - Mother-of-Pearl Diamond Dial - Oyster Bracelet - 278288RBR mdo formula caliber 1904-CH MC self-winding movement31mm 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, mother of pearl 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