In 1996, Patek Philippe patented the Annual Calendar complication, a new mechanism that took into account the different lengths of the months and required only one annual adjustment in February. The legibility of the calendar functions were made easy thanks to the month and day that were indicated via two apertures on the top part of the dial whereas the date, moonphases and 24 hours indication were placed elegantly on the lower part of the dial.

In a bold move, Patek Philippe decided to merge fine complications and sports chic by launching a Nautilus housing this intelligent and useful complication.

The present reference 5726/1A-001 is the second variation of the Annual Calendar Nautilus launched in 2012, which, for the first time was offered with the iconic Nautilus satin and mirror finished stainless steel bracelet.

Housed in the immediately recognizable case designed by Gerald Genta, this annual calendar movement displays its indications on a beautiful dark grey dial.

Preserved in barely worn condition, fresh to the market and consigned by the original owner, the present watch is complete with its Certificate of Origin dated June 12, 2017, product literature, leather wallet, Patek Philippe fitted box and outer packaging.