First of all, thanks for posting these amazing photos!! This is a beautiful (no-name) Pasadena . . . but as our friend Chuck Maddox used to point out, it is still a "Pasadena", only without the name written on the dial.

Here is an image that may help us see the difference between a couple of the "military style" Heuers.

On the bottom row, we see the Pasadena on the left (in black PVD) and the Montreal on the right (in stainless steel). The Pasadena is concave, as the case curves inward (like going into a "cave") . . . the Montreal is convex, as the case bulges outward.

On the top right, we see the AMI chronograph, which also has the convex case.

Jeff