Enamel all through a system that requires eighty hours. It comes in 18-karat white gold with different shades of eco-friendly or in 18-karat pink gold with blue hues, the two accented with diamonds. The bottom metallic of each is very first sealed having a transparent enamel then levels of opaque https://www.watchesworld.com/from-sean-to-daniel-tracing-the-evolution-of-james-bonds-iconic-watch-collection/