Pre-Owned Patek Philippe Complications Annual Calendar 5035J

Patek Philippe invented the annual calendar complication in 1996, and the 5035J was the watch that introduced it. The 37mm 18k yellow gold case houses caliber 315 S QA, a 35-jewel automatic with a 21k gold rotor, Poinçon de Genève, and subdials for day, month, and 24-hour indication alongside a date aperture at 6 o'clock. The mechanism distinguishes 30- from 31-day months automatically, requiring one correction per year at end of February. Production ran 1996 through 2005; supply is fixed. Every 5035J available at The 1916 Company is fully authenticated and backed by our 2-year warranty.