The De Witt’s WX-1 Watch can be purchased for $650,000.
Created by Architect Jean-Michel Wilmotte, the WX-1 is equipped with a vertical flying tourbillon with a carriage that performs one revolution per minute.
The mechanical hand-wound movement incorporates a parallel going train with five barrels to provide a remarkable 21-day power reserve (equal to about 504 hours). All the parts of the engine, including barrels, gear train, tourbillon carriage, power-reserve indicator and winding device, are arranged in vertical order.
This is way more than a watch. And with the manual labor put into producing such a fine time piece it is well worth it's price.