In the picture gallery you can see the latest illustrations of talented 3D illustrator Martin Hajek, who shows us clearly how it would look iPhone 7 in color Space Black.
The color of Space Black is currently available for Apple Watch. As you can see, the color of the antennas is little different to keep a low profile. They follow the curve of the phone an did not cross on the back, as happens in the iPhone 6/6s. – Source Martin Hajek