Not something which anyone of us can well explain in a few sentences or phrases. I suggest you do some reading on their history, artisanal expertise, grand creations ( they are pioneers in the most complicated movements such as minute repeater and etc) and the care they take to manufacture every piece of their watches. If you visited the PP Grand Art Exhibition in Sep 2019, you probably know what we talking about. The accolades, prestige that is synonymous with the name Patek Philippe is definitely not a result of marketing