Figuring among the thinnest tourbillon skeleton self-winding movements in the world with its thickness of only 5.05 mm, the 1270S tourbillon skeleton calibre is instantly identified by its contemporary design. This movement's inverted structure gives a view on its display side of its tourbillon, bridges and oscillating weight in black PVD-treated platinum. The off-centred and black-surfaced micro-rotor and tourbillon cage, surmounted by a letter 'P' for 'Piaget', intertwine to form an '8' in a contemporary colour tone, matched by the deep black of the screws and hands. This unique structure makes visible all the watch's main functions – its self-winding mechanism, its driving force, its regulating system and its gear-train – together with its hours and minutes hands, which are also off-centred. Piaget's mastery of extreme miniaturisation is matched by the outstanding quality of the movement's finishing and decoration, combining traditional craftsmanship and the stylishly simple lines of contemporary design.