> A relatively thick rectangle with a rounder back is going to have a center of mass that is further away from the wrist. It comprises a very small cantilever,

> A relatively thick rectangle with a rounder back is going to have a center of mass that is further away from the wrist. It comprises a very small cantilever, which is still quite large on the scales of the traditional watch. Yeah, I think you've nailed it. I was going to mention the thickness of the Series 4, but it's far thinner than, say, an Omega Speedmaster. To your point, traditional watches with sapphire backs also have prominent wrist presence, since the caseback domes outward similar to (but not as much as) Apple Watches. Also consider that traditional watchbands connect to lugs that protrude from the watch body and often curve downward to follow your wrist. This also lowers the cantilever towards the wrist. Watches that do not do this (like the Nomos Club) have a much larger wrist presence, and the Apple Watch completely lacks lugs so that the band connects mid-body.