The Tonda PF Annual Calendar Steel Platinum with retrograde date demonstrates how discretely and astutely advanced indications can be integrated into a pared-down design. By pushing the date outwards onto the minute track and using discretely outlined counters on the warm grey guilloché dial, Parmigiani Fleurier has managed to balance the pared-down equilibrium of the collection's design language and an elaborate layout. The 42 mm Tonda PF Annual Calendar transcends the aesthetics that had thus far been associated with Parmigiani Fleurier's annual calendar movement. Caliber PF339 presents a retrograde date, day, month and 122-year moonphase as visible in both hemispheres. As they come on top of the three usual time-telling hands, the very nature of the general design of the collection was at stake.