
Photo by Patek Philippe SA (CC BY-SA 4.0), via Wikimedia Commons · shown: Nautilus family photo
Nautilus Annual Calendar
The annual-calendar branch integrated into the Nautilus sports case: the 5726A-001 in steel (2010–present) pairs a moonphase and 24-hour day/night indicator with a calendar that needs only one correction a year, at March 1. The first Nautilus complication offered in steel rather than precious metal.