Have you ever wondered, what are the most expensive watches in world? Here I am going to tell you about 10 of most expansive watches. There are many intricate details in million dollar watches like expensive stones, diamonds and gems that are encrusted into them jacking up their price. These watches have complicated mechanisms inside that make time telling as accurate as it could be. Some are equipped with the tourbillion, an intricate mechanism that counters the effects of gravity. These complexities definitely increase the selling price of these expensive watches in the world.