If you are willing to spend a fortune on a new watch then, the Limited Edition C3H5N3O9 “Nitro” Experiment ZR012 Timepiece is just what you should look for. This watch is made by MB&F and URWERK and is powered by Wankel-inspired movement that shows hours and minutes on a pair of eccentric rotating Reuleaux polygons, measuring at 55 x 44 mm, not counting the lugs, with a full wind good for 39 hours of run time.

Wankel engine technology was first seen and adopted by Mazda car company but was a limited success because of high production cost and maintenance issues. There will only be twelve Wankel-powered watches to be ever produced, will be sold for $118,000 each and will only be available form 2013.

Source: slashgear