The eyebrow windows become also visible in the exterior model of course. Otherwise that would look kinda strange 
This panoramic view is a pure blast while flying!
When having the eyebrow windows disabled they become blind white-tinted glass on the outside, almost invisible.
Ah I remember while the 737 was in development the most important first question was: Will these rooftop panorama windows be there? So awesome flying through a thunderstorm with these windows, they give the cockpit such a uniqué feeling of sitting under a glass dome.
(I evaluate a cockpit not only by the features and high-tech it has, but also by the pure looks: How does it feel sitting inside there, how would it feel when sitting in the real deal either in the real airplane, or in this cockpit with a VR headset on?)
And the 737 is pure AWESOMNESS!!