Enamel throughout a system that takes 80 hours. It comes in eighteen-karat white gold with a variety of shades of green or in eighteen-karat pink gold with blue hues, equally accented with diamonds. The bottom metal of each is first sealed with a clear enamel after which layers of opaque https://www.watchesworld.com/from-sean-to-daniel-tracing-the-evolution-of-james-bonds-iconic-watch-collection/