Enamel through a system that will take 80 hours. It is available in eighteen-karat white gold with many shades of green or in 18-karat pink gold with blue hues, equally accented with diamonds. The bottom metal of every is first sealed having a transparent enamel after which layers of opaque https://www.watchesworld.com/from-sean-to-daniel-tracing-the-evolution-of-james-bonds-iconic-watch-collection/