Which one looks better on a guy?

[i_like_tofu]

They are roughly the same size.

Thanks.

[Chill_Thoughts]

Most likely A
The size of your hand and wrist can be important for it. Like big hands and wrists usually can wear more visually complicated watches like B nicely

[TrueConfection]

I like the color and the clean look of A, simplistic and sophisticated.

B is too busy.

[Anonymous]

Watches are one of the ugliest fashion accessories anyone can wear.

[SnowedIn]

A. The simplicity.

[olabira]

I like A more

[tfan1]

Definitely A. 👍🙂