Since 1957, Piaget has been a true master in the art of ultrathin watches. The latest evolution is the Altiplano Chrono. The movement, developed entirely by Piaget, is the 883P. It has its roots in the automatic 880P movement – one of the thinnest on the market. This hand-wound flyback chronograph is the thinnest in the world in terms of both its ultra-thin calibre and case.