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The Clous de Paris guilloché aluminium is an ornament that reproduces small nails with pyramidal heads, separated by grooves. DS Automobiles is the only car manufacturer to use this know-how, generally reserved for high-end watches.

The guillochage process was invented by the French watchmaker and physicist Abraham-Louis Breguet in the 18th century. The guillochage takes the appearance of lines that intersect with symmetry and embellish the surface of the material. These patterns make it easier to grip with more grip. Their reliefs protect the material from oxidation by reducing its surface in contact with the skin and avoiding fingerprints.

The advantage is not only aesthetic but practical. This type of decoration is now applied to the automotive world and contributes to the refinement of DS models.