Christophe Claret is enriching its X-TREM-1 watch collection with a new variation. X-TREM-1 represents a major technical and aesthetic accomplishment: a flying tourbillon inclined at a 30° angle, mounted on a three-dimensional curvex titanium main-plate, equipped with a retrograde hours and minutes display system that is radically different from existing conventions. Two tiny hollowed steel spheres, isolated within tubes on the left and right sides of the caseband, magically move with no mechanical connection thanks to magnetic fields generated by two miniature magnets moved by cables. 5N red gold and black grade 5 PVD titanium were the metals chosen to make the case of this new version and the sapphire tubes have been replaced by cylindrical ring-bound tubes housing mobile stainless steel spheres indicating the time. This version is produced in an 8-piece limited edition.