Patek Philippe 5146P-01 ’Ardoisè’ Annual Calendar Moonphase with Power Reserve, Platinum , Slate Grey Anthracite "Ardoise 3 Arab" Dial with Applied White Gold Arabic Numeral Hour Markers at Three of the Quarter Hours, Faceted Gold Baton Markers at the Rest, Luminous White Gold Feuille Hands. The subsidiary dial at 9 o’clock has the days of the week, while the dial at 3 o’clock shows the month; a plus/minus power reserve meter is at 12 o’clock. The moon phase display and the date aperture are at 6 o’clock. Brown Crocodile Strap, Self-Winding Mechanical Patek Philippe Caliber 324 S IRM QA LU Automatic Movement which is Rhodium-Plated with Fausses Cotes Decoration. The mechanism contains 36 jewels, 355 parts, a straight-line lever escapement, and the patented Patek Gyromax balance that’s adjusted to compensate for cold, heat, isochronism, and 5 positions. Included are a shock absorber and a self-compensating free-sprung flat balance spring, and a 21K gold rotor. The movement oscillates at a frequency of 28,800 vph (4 Hz). Transparent Skeleton Exhibition Back. Fitted on an Alligator Leather Strap with an Platinum Deployant Buckle – Rare Discontinued Collectors Reference.

A ’complication’ in watchmaking is anything a mechanical watch might do beyond telling the time and simple date. Patek Philippe upholds a tradition in complications that are useful in everyday situations, such as Annual Calendars, dual time zones and World Time displays. At Patek Philippe, we enjoy unrivalled expertise in our knowledge and practice of this pinnacle of the watchmaker’s art. Here you have one of Pateks’s most beautiful Annual Calendars. 

Reference No. 5146P-01