The most expensive watch ever made is another Graff Diamonds creation. The Hallucination is, as the name suggests, truly breathtaking and brilliantly fantastical. 

Featuring a kaleidoscopic array of 110 carats of different colored diamonds in a range of different cuts, set into a platinum bracelet, The Hallucination brings high fashion to the world of Horlogerie. About as far from a tactical watch as you can get, it’s almost easy to forget this piece’s timekeeping capabilities, but there is a tiny dial in the center of all that sparkle. 

With the eye-wateringly high price tag of $55 million when it was first unveiled at Baselworld in 2014, the Hallucination is the culmination of thousands of hours of work from a team of designers, gemologists, and expert craftsmen.