Patek Philippe Nautilus 5726

Patek Philippe's Nautilus 5726/1A-014 is a steel annual calendar watch with a case measuring 40.5 mm across and 11.3 mm thick. The dial is black with applied hour markers and hands treated with luminous coating for visibility. Sapphire crystal covers both the dial and the display back, which shows the self-winding calibre 26-330 S QA LU 24H. This movement combines an annual calendar with day, date and month apertures, a moon phase display and a 24-hour indication, and it stores up to 35 hours of power reserve. Central sweep seconds rounds out the display. The watch is fitted with a steel bracelet. A screw-down crown helps the case hold its 30 metre water resistance rating.