When are you lot going to learn to ignore the photos!!! This does not photograph well on your wrist!! It looks huge when its not. You can only judge this thing in person, trust me.
This.
You really need to try both sizes yourself. I thought that the 42mm would be too big for my small wrists, but when I tried both sizes in person I thought that the 42mm looked great and that the 38mm actually looked small.
It needs to be seen in person.