Enamel during a system that will take 80 hours. It comes in eighteen-karat white gold with various shades of green or in 18-karat pink gold with blue hues, each accented with diamonds. The base metallic of each is initial sealed that has a transparent enamel and then layers of opaque https://www.watchesworld.com/from-sean-to-daniel-tracing-the-evolution-of-james-bonds-iconic-watch-collection/