My favorites are the one with the a pietersite dial and the last one with the mother of pearl dial. The watch with the a pietersite dial, I'm just drawn into the dial. Its such an unsual looking material that I forgot about the case shape. If I found a pair of cufflinks with pietersite I would definitely get them.
The last one with mother of pearl, is a lot of fun. It looks like something of the late 60s early 70s. It gives the watch kind of a fun whimsical look, and I like when watches are not always serious in appearance even when they are from a serious watch maker.
I like watches that are in unusual case shapes. I think it makes them more of a conversation piece. I have an asymetric cased Vacheron, which I adore. When people notice it they often look again and ask if its a rectangle or an optical allusion that makes it look like its not symetrical. Its a fun piece. I find that since I usually where a round sport watch for everyday, putting on something that is not round makes it feel more special, maybe a bit dressier. Sometimes its fun to wear something unexpected and different.
Best regards,
Dino