Grand Complications
5978P-010
2026 / Watch Art Milan
$337,585
5978P-010
CHRONOGRAPH. INSTANTANEOUS PERPETUAL CALENDAR.
An exclusive chronograph with an instantaneous perpetual calendar
To mark the WATCH ART™ Grand Exhibition – Milan 2026, the Manufacture is combining for the first time its manually wound chronograph movement with an instantaneous perpetual calendar, giving rise to the new 500-component CH 29-535 PS QI caliber. This mechanical marvel is housed in a 42 mm platinum case and features a sunburst navy blue dial with a textured center. It is fitted with a matching composite strap with fabric pattern. This sporty look timepiece is available in a 120-piece limited edition.
New manually-wound CH 29-535 PS QI caliber, chronograph movement with instantaneous perpetual calendar.
Sunburst navy blue dial with black-gradient rim and textured center. Calendar indications in Italian and transfer-printed in blue, displayed along an arc within applied white gold frames.
White gold faceted baton-style hour markers and dauphine-style hands with white luminescent coating. Red varnished chronograph hands.
Fully polished 42 mm platinum case with concave bezel and scalloped lugs, set with a diamond at 6 o’clock. Sapphire-crystal case back with transfer-printed inscription “Patek Philippe Milano 2026”.
Navy blue composite strap with fabric pattern and contrasting red stitching. Stopping point in the colors of the Italian flag. Platinum patented triple-blade fold-over clasp.
Limited Edition of 120 pieces.
Technical characteristics
Sunburst blue with black gradient-rim, textured center, white gold applied faceted baton-style hour markers. White gold faceted dauphine-style hands with white luminescent coating.
Platinum. Diamond set at 6 o’clock. Diameter: 42 mm. Thickness: 14.24 mm. Water-resistant to 30m. Sapphire-crystal case back with transfer-printed inscription “Patek Philippe Milano 2026”.
Composite material, fabric pattern, navy blue. Platinum patented triple-blade fold-over clasp.
CH 29-535 PS QI
Manual winding
Chronograph
Instantaneous 30-minute counter
Instantaneous perpetual calendar
Day, date, month, leap year and day/night indication in apertures
Moon phases
Small seconds
Diameter: 32 mm. Thickness: 8.1 mm. Number of parts: 500. Number of jewels: 42. Power reserve with the chronograph disengaged: min. 55 hours – max. 65 hours. Frequency: 28,800 semi-oscillations/hour (4 Hz). Balance spring: Breguet. Distinctive sign: Patek Philippe Seal.
Inside an Instantaneous Caliber
The caliber CH 29-535 PS QI combines an instantaneous chronograph with an instantaneous perpetual calendar. Its energy-management mechanisms enable the precise and simultaneous synchronization of all displays.
