Patek Philippe Calatrava 3520G Clous de Paris in 18k White gold Porcelain Dial with Original Certificate of Origin watches-for-sale with the "/9" suffix indicating

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

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

The hands are also Breguet-style and give the watch a totally timeless look that collectors love

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

and serial number

Patek Philippe Calatrava 3520G Clous de Paris in 18k White gold Porcelain Dial with Original Certificate of Origin watches-for-sale with the "/9" suffix indicatingFew 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