pf777PF777. The craftsmen were able to skilfully play with the parts and the voids between them to bring lht into the very heart of the calibre PF 777. This delicate latticework, meticulously bevelled by hand, leads the purist's eye deep intoMovement: PF777; self-winding movement; frequency 28,800 vph (4 Hz); 29 jewels; power reserve 60 hours; 187 components. Bracelet: Polished and satin-finished 18ct