In 1957 Piaget introduced the 9P ultra thin movement and the 'Style Selector' program. Clients had the opportunity to personalize their watch by choosing the hardstone face, shape of dial, and one of six style bands. These watches have become highly collectible and in 2020 Piaget re-launched their customization services calling it 'Infinitely Personal'.

1960s Piaget advertisement for the 'Style Selector'