Extremely well put together with just the right amount of crazy.
Here are a few of my crazier pieces in the collection today:
De Bethune DB 28. Just love this brand and I'd own them all if I could afford it.

The Chronofighter is crazy because it has a corkscrew on the side

In the world of "normal" watches, the Hautlence is mildly cray cray with its TV shaped case and retrograde minutes and jump hour.

This one belongs in the museum of crazy pieces and was intentionally designed that way. The HD3 Idalgo XT-2 aka Wonderwoman's cuff. A watch that actually contains quite a bit of cool techno that would be utilized in other high-end pieces, e.g. variable geometry rotor (that's at you, Richard Mille) and a sapphire dial. Fabrice Gonet who co-designed this piece was a leading influence behind the more commercially successful MB&F HM #2 that came out 2 years later and you can see the shared design influence.

Honestly, besides the next piece, this one gets the most comments of any of these. In the words of the immortal Chris Rock "It's Spinning!!". The Perrelet Turbine XL, because one rotor is never enough.

And last, but not least, my URWERK. Because the house of URWERK only makes crazy watches.

Cheers!
NickO