Guillochage is a goldsmith technique that consists of engraving straght, wavy, parallel or interwined lines symmetrically on an object using a tool of specific shape. To date, S.T. Dupont is the only House that has mastered the ancient technique of natural lacquering. The specific formula guarantees extreme durable products that will last for generations. The use of the lacquer allows the Maison to explore an unlimited choice of colors and decorations: Sunburst, intense vivid colors, gradations, guilloche under the lacquer and delicate glitter applications.