640P

Piaget 640P manufacture hand-wound mechanical flying tourbillon movement featuring a moon-phase indicator. This rectangular caliber includes hours, minutes, seconds, and an astronomical moon-phase at 6 o'clock, with a flying tourbillon at 12 o'clock and a titanium carriage. It has a 40-hour power reserve, 23 jewels, and 180 components measuring 28.6 x 22.4mm and 3.5mm thick, with finishes including hand-bevelled bridges, circular graining, and blued screws.