1985 Patek Philippe Ref.3450 Perpetual Calendar Moon Phase "Leap Year" in 18K Yellow Gold

This is a self-winding, perpetual calendar wristwatch with a leap year indicator, produced by the prestigious watch brand Patek Philippe. It was manufactured only in limited quantities, with a total production of 237 pieces spanning from 1981 to 1985. This particular timepiece belongs to the final batch produced in 1985.
The movement inside this watch represents the epitome of Patek Philippe's automatic mechanical movements, meticulously crafted and regarded as the finest among their self-winding movements throughout their history.
In contrast to today's limited editions and commemorative models produced for marketing purposes, this watch from that era was created without consideration for production costs or time-consuming processes, focusing solely on producing the world's highest-quality timepieces. It is the last mechanical watch of its kind to be crafted in this manner.
Considering all of these factors, it is undoubtedly a masterpiece that will go down in the history of watchmaking. (It comes with the original box, strap, clasp, archives, and a winding machine.)"