Patek Philippe Calatrava 3520G Clous de Paris in 18k White gold Porcelain Dial with Original Certificate of Origin watches-for-sale - Serial 157xxx dating to

- Serial 157xxx dating to 1956

- issued ti the Indian air force

The caliber 2310 was introduced by Lemania in the 1940s and became part of Patek Philippe's legacy in the 1980s

with the "/9" suffix indicating its 18k white-gold construction

The Omega Cosmic calendar was produced in five round-case references

Patek Philippe Calatrava 3520G Clous de Paris in 18k White gold Porcelain Dial with Original Certificate of Origin watches-for-sale - Serial 157xxx dating toFew watches embody timeless elegance quite like the Patek Philippe Calatrava. This particularly beautiful reference 3520, crafted in 18k white gold, stands as a perfect example of that understated philosophyrefined, balanced, and effortlessly classic. At first glance, it is the iconic Clous de Paris bezel that draws you in. A signature detail that adds just the right amount of texture and depth, catching the light in a way only Patek Philippe can