The Swiss don't exclusively own the high end. The Japanese have wicked watches, there's Seiko and their partner Orient. Seiko has a higher-end name called Credor, and they've made some outrageous stuff.. how about grand complication with sonnerie, based around the SpringDrive movement?
Feel too lazy to type links so just look up Credor, Grand Seiko, Spring Drive. Also Credor Torque and Credor Sonnerie. I'm not gonna type the links for you. Use the google!
What makes Seiko so special? They make everything. They don't buy movements from someone else -- like the swiss do -- and then finish them themselves. Seiko makes everything -- the steel the case is made of, the crystal, the dial, the markers, the glue that glues the markers to the dial, the jewels, the spring that holds the jewel, the lube that goes between the jewels, they make the mainspring, the crown, the stem, every single piece of the movement, the hairspring, etc.
The only other watchmakers than can boast complete construction of every piece of their watches is Patek Phllipe, Jaeger and maybe even Panerai. Everyone else buys from ETA or Jaeger. Cartier? Jaeger. That obnoxious 52mm penile extender? ETA. Bell & ROss? ETA. Omega? ETA. ETA ETA ETA. Jaeger and ETA makes most watches' movements for Europe.
And lastly, if you think Rolex and IWC are the high end, well... I'm sure Patek Phillipe, Seiko and Jaeger would dispute that claim.
Go ahead, do your googlin' and youtubin'. Spring Drive will make your head explode. ETA tried and failed miserably to copy that. It took Seiko almost 30 years to perfect it.
What's on my wrist? A 1968 King Seiko, handwind, no auto. Keeps to plus or minus 2 seconds every 24 hours. Hand-made. Fanatical attention to detail. Don't bother, you won't find a 44KS unless it's from ebay, never sold outside japan.