855P

Piaget 855P ultra-thin self-winding mechanical Perpetual Calendar movement, equipped with retrograde day and date displays and a dual time zone. The round movement tracks hours, minutes, small seconds, month, year, and a 12-hour second time zone with a synchronized day/night indicator. It features 343 components and 38 jewels, providing an 81-hour power reserve at 21,600 vph within a 5.6mm thickness.