In the world of insane, high-end watches, some of the most insane stuff is from Maximilian Büsser and Friends, or MB&F. The produce more sculpture than watches.
If you're interested in HM9, in the video below, you can have one for just over $245,000. Not in my budget, but I think they are fascinating.
HYT watches came to a lot of people's attention (both watch people and rock fans) when Axl Rose of Guns N' Roses showed up with a blue, skull wristwatch.
HYT uses liquid to show the time on their watches. You can buy preowned watches for about $20,000 on the low end. The Skull watches are more like $32,000.
They are another mechanical marvel, that uses fluid dynamics to tell time. HYT calls themselves "the Hydro Mechanical Horologists."
I tried to find a good video of the skull watch. They all focus on Axl Rose, and they do not focus on the watch. Some of them are just too long, or not well produced. If I stumble across a good video, it will be linked in the comments.
Mechanical watches are fascinating to me. In some ways they are the pinnacle of mechanical engineering. Hundreds of parts, meticulously designed and manufactured to keep time accurate to a few seconds per day, under most conditions you will encounter in a year.
The truly high-end watches take that to another level, with insane complications, but this is beyond insane.
A tourbillon is a complication in horology (the science of measuring time), in which the escapement and balance wheel are mounted in a rotating cage. It is meant to reduce timekeeping error due to manufacturing errors in the balance wheel, the part of the watch that acts like a pendulum to measure time. It is a beautiful complication, but it really hasn't been necessary since men traded in pocket watches (which sat in the same orientation all day), for wristwatches.
The 16-cylinder engine is just cool, and serves no purpose.
You can get one of these watches if you have a spare $341,000. That is unless you want gold and/or diamonds, in which case the cost will be more like $1 million.