One of the most talked-about watches when it was unveiled four years ago, X-TREM-1 gives the full measure of Christophe Claret's creative sparkle and technical verve. Now it returns centre-stage in a most original guise. This is the first time that Claret, a keen student of history, has transposed the ancestral method for producing Damascus steel to watchmaking. Traditionally, Damascus steel is made by layer-assembling two types of steel. Successive forging and folding results in a piece of metal that can comprise several hundred layers. This alloy boasts a homogenous structure that is extremely resistant but also, for the same reason, hard to work with, particularly when crafting such a complex case as that of the X-TREM-1. Case aside, this coveted watch retains the characteristics that have made it such a star: a 30° inclined flying tourbillon and a retrograde display provided by magnetic fields. Mysterious and innovative in one.