Designed to fight the effects of gravity, the tourbillon exerts a pull that's near-impossible to resist.
Hajime Asaoka put together a chronograph in five months - a feat so astounding that a watch engineer jokingly called him a liar.
And to think, they have to assemble this twice.
Itâ€™s A Time Machine
The force on the tourbillon may be constant but the design aspect of this IWC watch is anything but.