Patek Philippe is one of the most highly regarded and well known watch brands in the world. With a long history of creating some of the most complicated, elegant and impressive watches, it is no wonder they maintain such a strong following of passionate collectors. In this post we feature a first series, yellow gold Patek Philippe reference 3450, an automatic perpetual calendar with moon phases and a leap year indicator.
With the reference 3450, Patek Philippe added to it’s predecessor (the ref. 3448) to include an upgraded movement, a leap year window between 3 & 4 o’clock, a sapphire crystal and a caseback with a snap on latch.
The most notable design upgrade is the added leap year window. This window displays 4 different years, but you might notice in this particular model the window is currently red. This is because this is a very rare first series 3450. In first series 3450’s, the leap year window displays Arabic numerals for the first three years and then a red dot on the fourth year, the leap year. Second series models display roman numerals for all four years. It is believed that as few as 40 of these first series, red-dot models were produced by Patek Philippe which is why this is such a unique example.