The difference being Swiss watches are elegantly engineered pieces of art whereas internal combustion engines of any kind are essentially just rube goldberg machines that we have collectively normalised as a society.
I think you’re underselling the amount of sophistication and refinement that goes into a modern ICE, which is the backbone of a big part of the global economy.
That doesn't change the fact that they are worse at what they do than an equivalent electric motor. There's zero reason we need ICE. We have better technology, we just don't have the will (at least in America) to fully adopt it.
