Patek Philippe revisits the in-line perpetual calendar Reference 5236P with a vintage-inspired opaline rose-gilt dial enhanced by charcoal gray white gold hands and applied hour-markers. Ultra-thin self-winding 31-260 PS QL caliber featuring a triple-patented additional module displays the day, date and month through a large single 12 o’clock aperture, complemented by two round apertures for the leap-year cycle and day/night indication and a moon-phase display. The elegant entirely hand-polished platinum case is set with a diamond at 6 o’clock.

Watch
Self-winding mechanical movement. 
Caliber : 31-260 PS QL. 
In-line perpetual calendar. 
Day, date, month, leap year and day/night indication in apertures. 
Moon phases. 
Small seconds.
Dial : Opaline rose-gilt, charcoal gray white gold applied faceted baton-style hour markers.
Case : Platinum. 
Diameter: 41.3mm. 
Height: 11.07mm. 
Water-resistant : 30 m. 
Sapphire crystal case back.
Strap : Alligator leather with square scales, hand-stitched, shiny chocolate brown. 
Platinum fold-over clasp.
Diameter: 34 mm. 
Thickness: 5.8 mm. 
Number of parts: 503. 
Power reserve: min. 38 hours - max. 48 hours. 
Winding rotor: Platinum off-center mini-rotor. 
Frequency: 28,800 semi-oscillations/hour (4 Hz). 
Hallmark: Patek Philippe Seal.