7. Louis Moinet, Meteoris – $4.6 Million
Louis Moinet is one of the greats in clock making history. The inventor of the chronograph, Moinet learned much from working closely with another French clockmaker, Abraham-Louis Breguet. Famous customers of Moinet include Thomas Jefferson, James Monroe and Napoleon Bonaparte. The Meteoris is one of the more fascinating watches to be created. Technically, the Meteoris is a set of four tourbillon watches with each one being very distinct from the others. Fragments of meteors from Mars, the Moon, Mercury and an asteroid are all integrated into their own watch providing each with a unique look. As an added bonus, the four watch set comes with a mechanical solar system which also acts as a display for the four timepieces.