Sumo size relative to PO?

Hi everyone,
New to this area of WUS. I own Omega Planet Oceans in the 42 and 45.5 sizes. I'm looking for a diver with a size smack in the middle of these two. I was thinking maybe the seiko sumo but am having a hard time gauging how its size relates to the two PO models.

If anyone happens to have a Planet Ocean (either size) AND a sumo, I'd be very grateful I'd you'd be willing to post side-by-side photos.

Also, any other recommendations for a 43mm-ish diver in a similar style?

Thanks so much.