Enamel through a method that can take 80 hours. It comes in 18-karat white gold with several shades of green or in 18-karat pink gold with blue hues, each accented with diamonds. The base metallic of every is initial sealed using a transparent enamel and after that levels of opaque https://www.watchesworld.com/from-sean-to-daniel-tracing-the-evolution-of-james-bonds-iconic-watch-collection/