Parmigiani Tonda PF returns with the new Tonda PF Chronograph Mystérieux, a 40 mm steel wristwatch that pairs a playful central chronograph system with a subdued Mineral Blue dial, the brand said.

The watch uses a 40 millimeter stainless steel case that measures 13 millimeters thick. The case finishes alternate between polished and brushed surfaces, while the brand has fitted a knurled bezel in platinum to increase visual contrast, Parmigiani Fleurier said. The case measures 40 mm across and 13 mm thick, about 1.57 inches by 0.51 inches.

Uniquely, Parmigiani places a single button chronograph control in the crown at the seven o’clock position, a layout the brand said frees space inside the movement to realize the watch’s layered display logic. The crown location is uncommon, and it gives the watch a clean profile while accommodating the movement architecture.
Movement and mechanics
The Tonda PF Chronograph Mystérieux uses Parmigiani Fleurier’s in house PF053 automatic movement, which runs at 4 hertz and comprises 362 components. The movement offers about 60 hours of power reserve, and it uses a column wheel chronograph that is operated by the single button to start, stop, and reset the timer, the brand said.

A sapphire display caseback reveals skeletonized bridges and hand beveled finishing, showing the brand’s emphasis on fine polishing and edge work. The brand said the execution highlights its traditional finishing skills while supporting the watch’s mechanical complexity.
Dial and the central chronograph concept
The dial is finished in Mineral Blue with a fine Grain d’Orge guilloche pattern that creates layered reflections across the surface. On first glance the watch reads like a conventional three hand design, with rhodium plated hour, minute, and center seconds hands handling daily timekeeping.

When the single button is pressed to engage the chronograph, the center seconds hand instantly snaps to zero and begins timing. At the same time the visible hour and minute hands reset and convert to record elapsed minutes and hours for the chronograph function. Behind that action, a hidden set of rose gold hour and minute hands rises to continue showing the actual time, creating a two layer display, the brand said.
The design replaces the traditional small sub dials used for elapsed time with centralized hands, concentrating all timing readouts toward the dial center. That makes the dial visually tighter, and it produces a mechanical transformation that is meant to increase engagement when using the chronograph, even if some users will need time to adapt to the readout, Parmigiani said.

Parmigiani said pressing the control again returns every hand to its home position, hiding the rose gold timekeeping hands and restoring the watch to an unobtrusive daily mode. The brand presents the system as a way to combine everyday legibility with a dramatic mechanical choreography when the chronograph is used.
The Tonda PF Chronograph Mystérieux adds a discreet variation to central chronograph design, favoring a concentrated dial layout over multiple sub dials, the brand said. For collectors who value mechanical inventiveness and finishing, Parmigiani positions this model as a conversation piece that remains wearable in daily life.



