A new self-winding perpetual calendar has been added to the Patek Philippe collection. It comes in a Calatrava case with beautifully scalloped lugs and applied Breguet numerals.

WATCH

Ultra-thin mechanical self-winding movement. Caliber 240 Q. Day, date, month, leap year and 24-hour indication by hands.

DIAL

Dial: royal blue sunburst, gold applied Breguet numerals.

CASE

White gold. White gold. Interchangeable full back and sapphire-crystal case back. Water-resistant to 30m. Case diameter: 39 mm. Height: 9.71 mm.

BRACELET / STRAP

Alligator strap with square scales, hand-stitched, shiny navy blue, fold-over clasp. Fold-over clasp.