Parmigiani Fleurier Watch Tonda PF Micro Rotor Steel PFC914-1020001-100182. The Tonda PF is an entirely collection of timepieces within the Tonda family, featuring Parmigiani Fleurier\'s most distinctive complications from the outset. This includes the Tonda PF Micro-Rotor, a slim, pared-down, high-end two-hander with platinum micro-rotor. The Tonda PF Chronograph features an almost flush dial and an integrated high frequency chronograph movement. The Tonda PF Annual Calendar with retrograde date demonstrates how discretely and astutely advanced indications can be integrated into a pared-down design. All three models are available in steel with platinum hand-knurled bezel or entirely crafted in 18ct rose gold.