The Patek Philippe Perpetual Calendar Chronograph reference 3970ER-012 has a rose gold case and a silver dial. Picture by Sotheby’s.


The Patek Philippe Perpetual Calendar Chronograph reference 3970ER-012 has a rose gold case and a silver dial. Picture by Sotheby’s.
Personalized, end-to-end service to help you buy, sell, and trade with ease