The Patek Philippe Ref. 5740/1G Nautilus Perpetual Calendar in white gold, is the first ever grand complication in the Nautilus collection, following the addition of functions such as a chronograph, a second time zone (Travel Time) and the Annual Calendar.

It is a unique combination of sports appeal and technical sophistication, ruggedness, and the ultimate in watchmaking artistry – with the discreet elegance of a white-gold case and the utility of a calendar that automatically recognizes the number of days in each month as well as the periodically recurring 29th of February.

The Patek Philippe Ref. 5740/1G Nautilus Perpetual Calendar is also the slimmest Perpetual Calendar across all of the Swiss manufacture's range of timepieces, with a height of only 8.42 mm.

Ultra-thin mechanical self-winding movement. Caliber 240 Q. Blue sunburst, gold applied hour markers with luminescent coating. White gold bracelet with Nautilus fold-over clasp. White gold. Screw-down crown. Sapphire-crystal case back. Water resistant to 60 m. Diameter of 40 mm measured from 10 to 4 o'clock.