When the Cerachrom substance achieves the ideal shade of green, the bezel is then machined to provide it its closing shape. Last but not least, the Hulk’s green bezel is coated in platinum by using PVD (Bodily Vapor Deposition) and polished to eliminate the excess steel with the ceramic floor, https://www.watchesworld.com/summer-delights-top-watches-for-men-and-women/