Patek Philippe is a Swiss luxury watch brand known for its high-quality and technically advanced timepieces. Patek Philippe watches are often considered some of the most prestigious and sought-after watches in the world, with some models fetching millions of dollars at auction. Patek Philippe is a Swiss luxury watch brand known for its high-quality and technically advanced timepieces. Patek Philippe watches are often considered some of the most prestigious and sought-after watches in the world, with some models fetching millions of dollars at auction.