Million Dollar Watches: 7 Of The Most Expensive Watches Over $1 Million | Greubel Forsey’s Art Piece 1 was revealed at the 2013 SIHH, and quickly rose to the top spots in the most expensive watches ever made rankings, with a price of CHF 1.5 million (approximately $1.6 million). The Art Piece 1 also has an inclined tourbillon.