Patek Philippe has unveiled the Ref. 5978P-010, a new instantaneous perpetual calendar chronograph created for the Watch Art Grand Exhibition in Milan. This limited edition combines the brand's chronograph expertise with an instantaneous perpetual calendar mechanism, a feature previously seen in its Grand Complication watches. The watch is distinguished by its Italian calendar indications and a new movement architecture.
- Limited to 120 pieces
- Price: €318,100 / $380,000 / £272,480
The Ref. 5978P-010 is one of seven limited editions created for the Italian market for the Watch Art Grand Exhibition Milano 2026.
The watch combines the chronograph and instantaneous perpetual calendar complications, with the four calendar indications changing simultaneously in approximately 30 milliseconds.
The navy-blue dial features a textured center with a black-gradient outer rim, and the day and month indications are displayed in Italian.
The hand-wound Calibre CH 29-535 PS QI movement contains 500 parts and 33 jewels, operating at 4Hz with a power reserve of 55-65 hours.
The platinum case measures 42mm x 14.2mm and features a diamond set between the lugs at 6 o'clock, a signature of Patek Philippe's platinum watches.
This is only the seventh time in Patek Philippe's history that a new perpetual calendar chronograph reference has been introduced.
The instantaneous perpetual calendar mechanism is derived from Patek Philippe's Grand Complication watches.
The case design is described as 'Calatrava-style' with a concave bezel and incurved lugs, making it less dressy than previous perpetual calendar chronographs.