Mechanical Watches with Unique/Interesting Complications

I love looking at unique or unusual complications! Some of the ones I like the most though tend to be waaaay out of my price range.

I'm curious looking at non-quartz mechanical in the affordable section (say sub 1k?) does anyone have any really unique or unusual watches with special complications they like? Im not looking for something to buy for myself (at least in the short term) so much as just to see some fascinating watches in this category! If anyone owns any?