Annual Calendar 5146/1G
18ct White Gold Patek Philippe Annual Calendar Ref: 5146/1G-010. Mechanical self-winding 324 S IRM QA LU caliber movement. Case diameter 39mm water resistant to 30 meters with sapphire crystal see through case back. Functions: Annual Calendar, this distinguishes months with 30 days (from those with 31) and automatically switching to the first of the following month at the end of "short" months. Manual date setting is required only once a year. Day and month by hands, date in an aperture, moon phases, power reserve indicator & center sweep second hand. Slate gray sunburst dial with white gold applied hour markers and numeral 12. White gold bracelet with Patek Philippe logo fold over clasp. Box and papers dated May 2007.