40P

Piaget 40P ultra-thin manual-winding mechanical movement. This round caliber features hours and minutes, a 36-hour power reserve, 21,600 vph (3 Hz) frequency, 19 jewels, and a 2mm thickness. It measures 14.2mm (6.25 lines) in diameter, consists of 97 parts, and is finished with hand-applied circular-graining, straight Côtes de Genève, blued screws, and hand-bevelled bridges.