Perpetual calendar chronographs by Patek Philippe are as rare as eclipses, drawing attention worldwide. This iconic watchmaker has re-entered the scene with the Patek Philippe Ref. 5978P-010, debuting at Milan‘s Watch Art Grand Exhibition.
Insights into the Latest Masterpiece
Breaking from tradition, Patek Philippe’s creation integrates a hand-wound chronograph with an instantaneous perpetual calendar. Debuted at Patek’s seventh Watch Art Grand Exhibition in Milan, this timepiece is a limited edition of 120 pieces, each priced at $337,585. Featuring a navy dial with red chronograph hands, the calendar displays are printed in Italian, complementing the exhibition’s location.
Precision and Innovation in Movement
Patek’s new CH 29-535 PS QI caliber defines this remarkable timepiece. Comprising 500 components, the movement is derived from merging the CH 29-535 PS chronograph with the instantaneous calendar module previously seen in the R CHR 27 PS QI. This innovation allows for simultaneous advancement of all calendar displays in about 30 milliseconds, providing a distinct advantage over traditional perpetual calendars.

Replacing the gradual progression seen in standard timepieces, this mechanism stores energy throughout the day, releasing it in a swift motion akin to a bow. Boasting a frequency of 28,800 vibrations per hour, the hand-wound design eliminates the obstruction of a rotor, offering an unobstructed view through its sapphire caseback.
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Design and Craftsmanship
The 42mm platinum case of the watch is accentuated by a concave bezel and scalloped lugs. A hallmark diamond at 6 o’clock signifies its platinum status. Its dial is a navy gradient, transitioning to black at the perimeter, and is equipped with white gold markers and luminescent hands. The striking red chronograph hands add a bold touch, contrasting with the luxury’s subtle tones.

The calendar apertures, located between 10 and 2 o’clock, align with the moon phase indicator at 6 and the instantaneous 30-minute counter at 3, offering clarity and elegance in its design.

Milan’s Exclusive Edition
This Milan-exclusive watch, known as the limited edition, presents a sporty aesthetic uncommon in Patek’s formal collections. Its navy and red colors, along with a fabric weave strap reminiscent of the Aquanaut series, reinforce this unique character. Adding to its exclusivity, the model is available only at Patek’s Italian retailers.

Patek has tailored the timepiece for its seventh Watch Art Grand Exhibition held at Milan’s CityOval. Seven limited editions, totaling 685 pieces, comprise this special collection, including enamel-dialed World Time minute repeaters and carbon-patterned Calatravas.
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For collectors and connoisseurs, obtaining this exclusive watch outside Italy might require a watch auction, where such exclusive pieces often command a premium. This combination of rarity and refined craftsmanship exemplifies Patek Philippe’s dedication to horological excellence and innovation.
Source: yankodesign.com
Frequently asked questions
What is unique about the Patek Philippe Ref. 5978P-010?
The Patek Philippe Ref. 5978P-010 is unique for integrating a hand-wound chronograph with an instantaneous perpetual calendar. It is a limited edition of 120 pieces, priced at $337,585. It features a navy dial with red chronograph hands, and its calendar displays are printed in Italian.
Where is the Patek Philippe Ref. 5978P-010 available?
The Patek Philippe Ref. 5978P-010 is available only at Patek’s Italian retailers. It has been tailored for Patek’s seventh Watch Art Grand Exhibition in Milan and is part of a special collection, with this model being exclusive to Italy.
What powers the Patek Philippe Ref. 5978P-010?
The Patek Philippe Ref. 5978P-010 is powered by the new CH 29-535 PS QI caliber. This movement consists of 500 components, combining the CH 29-535 PS chronograph with the instantaneous calendar module from the R CHR 27 PS QI.
