Rolex Cellini in 18k on brown lizard strap with original 18k Rolex buckle. Quartz. With box booklets. Ref 6622. Circa 1990s Fine Pre-owned Rolex Watch. Certified preowned Vintage Rolex Cellini 6622 watch is made out of yellow gold on a Brown Leather Strap band with a 18k Deploy buckle. This Rolex watch has a 33 x 33 mm case with a Round caseback and Cream Roman Numeral dial. Circa: 1990s .