Imagine a watch that ends a long and passionate debate. And imagine that this watch has two spectacular hearts. The Tourbillon Carrousel fits this definition as it is the only watch that unites two famous inventions designed to average out the impact of gravity on a movement. For years, enthusiasts have confused these two mechanisms, but their construction styles differ. Have a look at how Blancpain united inventions by Abraham-Louis Breguet and Bahne Bonniksen in one watch.