Launched in 1981, reference 3450 was the successor of reference 3448 - Patek Philippe's very first automatic perpetual calendar wristwatch. While physically similar to reference 3448, it most notably features a leap year indicator on the dial. In addition, its case back is slightly smaller and is fitted with a "tongue", enabling it to be easily removed by the wearer.

The present watch, manufactured in 1985, is among the very last generation of reference 3450s ever made before the introduction of reference 3940. While the first generation examples were fitted with a "red dot" to indicate the fourth leap year, second generation examples displayed Roman numerals I, II, III and IV, like the present model.

This example is previously unknown and fresh to the auction market. Having been carefully preserved within the same collection for over 25 years, it benefits from the presence of its Certificate of Origin, stating the watch was retailed at the Patek Philippe salon in Geneva. Furthermore it retains its original fitted presentation box. Preserved extremely well, it displays two hallmarks punched on the caseband, and sharp finishes on the side of the case.

Patek Philippe produced very limited quantities of reference 3450, typically casing the model in yellow gold. To date, scholars estimate that Patek Philippe produced only 237 examples in total. As such, fresh gems hardly ever appear at auction. When they do, it's a momentous occasion, allowing the horological community to celebrate another discovery.