pf777Debuting at Watches & Wonders Geneva 2022. Starting with the Tonda PF form factor that we're getting to know extremely well around these parts, the Tonda PF Skeleton strips away the dial to reveal the PF777 caliberAKTISIL PF 777 is a SILLITIN Z 86 coated with alkyle silane. Brand: AKTISIL Functions: Filler, Pment. Chemical Family: Calcium Salts, Silicon-based Compounds. Compatible Polymers &