Patek Philippe Nautilus Annual Calendar Ref. 5726/1A-010 The Patek Philippe Nautilus Annual Calendar ref. 5726/1A-010, introduced at Baselworld 2012, shows day, date and month with moon phase and 24-hour display on a white dial, in a 40.5 mm steel case on the integrated bracelet. The reference is no longer part of Patek Philippe's collection. - Self-winding Calibre 324 S QA LU 24H/303 - Annual calendar, moon phase, 24-hour display - 40.5 mm steel case - White dial - Integrated steel bracelet with Nautilus fold-over clasp Full set. Maker: Patek Philippe. Reference: 5726/1A-010. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request.