Thinness is the house obsession. In 1957 Piaget brought out the Calibre 9P, the first ultra-thin hand-wound movement at just 2 mm, and the legacy held: in 2014 the Altiplano 900P arrived at 3.65 mm, the world's thinnest hand-wound mechanical watch, fusing case and movement into a single unit. The same year, Piaget marked its 150th anniversary.
Watchmaking and jewellery have run side by side since the 1950s, with dials worked in lapis-lazuli, turquoise and onyx and icons like the avant-garde Piaget Polo (1979). Part of the Swiss Richemont group since 1988, the house has been under the presidency of Yves Piaget since 1980.