Patek Philippe reinterprets its famous men’s Annual Calendar Reference 5396 in a new white gold version featuring a sunburst blue dial with black-gradient rim, discreetly enhanced by the brilliance of twelve baguette diamond hour-markers (0.26 ct). The dial color is echoed by a shiny navy-blue alligator leather strap. With its double day/month aperture at 12 o’clock, date aperture at 6 o’clock and 24-hour subdial with integrated moon-phase display, self-winding 26-330 S QA LU 24H caliber indicates the date for 30- and 31-day months and requires only one manual adjustment per year at the end of February.
Watch
Self-winding mechanical movement. 
Caliber : 26-330 S QA LU 24H/441.
Annual Calendar. 
Day, date and month in apertures. 
Moon phases. 
24-hour indication. 
Sweep seconds.
Dial : Sunburst blue with black-gradient rim, baguette-cut diamond hour markers (0.26 ct).
Case : White gold. 
Diameter: 38.5 mm. 
Thickness: 11.2 mm. 
Water resistant : 30 m. Sapphire crystal case back.
Strap : Alligator leather with square scales, hand-stitched, shiny navy blue. 
Fold-over clasp in white gold.
Moon phases. 
24-hour indication. 
Sweep seconds. 
Diameter: 33.3 mm. 
Thickness: 5.8 mm. 
Number of parts: 339. 
Winding rotor: 21K gold central rotor. 
Frequency: 28,800 semi-oscillations/hour (4 Hz). 
Power reserve: min. 35 hours - max. 45 hours.