Tonda PF Skeleton Steel

Based upon the foundational Tonda PF Micro-Rotor, the Tonda PF Skeleton displays the skill and craftsmanship of the artisans at Parmigiani Fleurier. This unique novelty skips the dial altogether to reveal the open-worked caliber PF777. Skeletonized and beveled to perfection, the movement bridges and plates have been galvanized with a NAC coating. This NAC alloy is from the platinum family of metals and contains rhodium and osmium. This treatment is responsible for the dark grey color of the main plate.