Enamel all through a procedure that can take 80 several hours. It comes in 18-karat white gold with many shades of eco-friendly or in 18-karat pink gold with blue hues, each accented with diamonds. The bottom steel of every is 1st sealed with a transparent enamel then levels of opaque https://www.watchesworld.com/from-sean-to-daniel-tracing-the-evolution-of-james-bonds-iconic-watch-collection/