Parmigiani Fleurier (PF) continues its exploration of “mysterious complications” with the Tonda PF Chronographe Mystérieux, a fully functional and surprisingly legible chronograph that is indistinguishable from a normal three-hand watch — until it isn’t.
Pressing the conveniently placed chronograph monopusher summons a chronograph on demand, fully equipped with central minutes and hour totalisers, which disappears just as easily. Despite being one of the most ambitious chronographs on the market, it is priced relatively accessibly, at least in steel.
Initial thoughts
At first glance, the Chronographe Mystérieux is nearly indistinguishable from a normal three-hand watch, unless you spot the pair of rose gold hands secreted under the mean time hands. Depressing the chronograph button at eight o’clock causes these, along with the sweep seconds hand, to fly back to zero and being timing intervals up to 12 hours.
The concept is not unlike that of the Maurice Lacroix Memoire 1, little-known halo piece that debuted in 2007 for EUR300,000. The Chronographe Mystérieux would work the same way without its hour and minutes hands, but their presence ensures the user can still read the time when the chronograph is running.
The result is a highly legible dial, enhanced with an almost excessively fine grain d’orge guilloché that, like the undersized 18k gold hour markers, gets out of the way of the hands. At launch, PF offers two variants of the Chronographe Mystérieux — a regular production version in steel with a soft blue dial, and a limited edition in platinum with a frosted, bare platinum dial.
While widely reported as being an “in-house” movement, PF has confirmed our suspicions that the Chronographe Mystérieux’s cal. PF053 was not made by Vaucher, PF’s sister company, but by an unnamed third-party specialist.
That might help explain the relatively accessible price of the Chronographe Mystérieux, which is just CHF32,000 in steel with a platinum bezel. Even the platinum model, at CHF99,600, sits below the entry price for TAG Heuer’s Vaucher-powered Carrera Split-Seconds Chronograph, despite the former’s platinum bracelet and more upmarket positioning. In short, Vaucher’s work is good, but also quite expensive.
Now you see it
The Chronographe Mystérieux is the crown jewel in PF’s “mysterious complications” collection, which kicked off back in 2022 with the Tonda PF GMT Rattrapante — a watch with a second time zone that is only there when needed. The Minute Rattrapante followed in 2023, approximating the functionality of a timing bezel, but again, only when needed.
Surprisingly, the latest and most ambitious take on the mysterious complications concept was also the first, and the impetus for the line — PF CEO Guido Terreni pitched the concept to founder Michel Parmigiani during his first year on the job, back in 2021.
The Chronographe Mystérieux with its chronograph engaged (left) and hidden (right). Image – Parmigiani Fleurier
A clever chronographe
The cal. PF053 is elaborate even by the standards of chronographs, with two rattrapantes, two horizontal clutches for the hour and minutes totalisers, and a vertical clutch for the dual-purpose sweep seconds hand.
In time-only mode, the rattrapantes keep the hour and minutes totalisers in lockstep with the hour and minutes hands while the seconds hand circles the dial. Pressing the chronograph button at eight o’clock declutches the seconds hand before a set of hammers sends all three chronograph hands to 12 o’clock before the clutches reengage to drive the chronograph hands forward.
The thumb-actuated position of the monopusher is especially ergonomic, as it puts your strongest digit against the button for an effortless feel.
The movement’s dial side. Image – Parmigiani Fleurier
A second press of the chronograph button applies the brake and declutches the hands, bringing the timing trio to a halt. A third and final press frees the hour and minutes hands, which zero into alignment with the current position of the primary hour and minutes hands.
At the same time, the vertical clutch reengages, allowing the elapsed seconds hand to reprise its secondary function as a running seconds indicator. Notably, since the seconds hand does not return to where it would be had the chronograph not been used, it isn’t a reliable means of tracking the watch’s timekeeping or keeping time to the second.
Despite its ambitious concept, the cal. PF053 is only 6.9 mm tall, which is impressively slim considering many normal automatic chronographs are similar in height and some are even taller.
In addition, it manages bidirectional automatic winding from a centrally mounted 22k gold rotor and a nearly weekend-proof 60 hours of going. The assortment, however, with a non-free-sprung balance paired to an Etachron-style regulator, doesn’t measure up to the brand’s usual standards. It is the most obvious hint, other than the price, that this movement is not a Vaucher product.
The movement finishing is orderly, with straight-grained bridges and machine-cut bevels. The revealing architecture is similar to that of past PF movements, but overall the detailing takes a back seat to the calibre’s technicality.
A familiar format
While the functionality of the Chronographe Mystérieux is indeed quite mysterious, the crowd-pleasing format is anything but. The Tonda PF was launched in 2021 to mark the brand’s 25th anniversary, repackaging PF’s classic Toric design language in a modern, integrated bracelet package.
While the Toric’s fluted bezel is still present, if reduced to a single tier of fluting, the model’s arched lugs have been mostly absorbed into the case, cloaking the ergonomic monopusher. As a result, the Chronographe Mystérieux wears like a large bracelet, à la the Audemars Piguet Royal Oak Chronograph.
And while the bracelet lacks the substance and burliness of a modern Royal Oak bracelet, or even that of the Rolex Land-Dweller, both case and bracelet are finished in a manner that’s commensurate the price tag.
That said, the bracelet terminates in a generic butterfly clasp that lacks the sort of micro-adjustment capability that both Patek Philippe and Vacheron Constantin have introduced recently. This is the kind of shortcoming that becomes more pronounced each year as the rest of the industry upgrades its clasp hardware.
Despite the Tonda PF’s elegant aesthetic, this is still PF’s take on the sports watch and as such is resistant to 100 m with a screw-down crown.
Key facts and price
Parmigiani Fleurier Tonda PF Chronographe Mystérieux
Ref. PFC908-1020001-100182 (steel)
Ref. PFC908-2020001-200182 (platinum)
Diameter: 40 mm
Height: 13 mm
Material: Stainless steel or platinum
Crystal: Sapphire
Water resistance: 100 m
Movement: Cal. PF053
Features: Hours, minutes, sweep seconds, and on-demand chronograph with seconds, hours and minutes
Frequency: 28,800 beats per hour (4 Hz)
Winding: Automatic
Power reserve: 60 hours
Strap: Matching bracelet
Limited Edition: 30 pieces (platinum)
Availability: At Parmigiani Fleurier boutiques and retailers
Price: CHF39,900 (steel), CHF99,600 (platinum) excluding taxes
For more, visit Parmigiani.com.