Tejano, I had seen that on Sheldon's site. I found a bunch of information by surfing different websites. I even found a copy of an original ad for the Submariner.

My first Sub had the centerpull brakes and the "fake" binder bolt. That was a 1974. This one is a '79 and doesn't have the same set up, it has sidepulls and is set up more conventionally. The sidepulls aren't marked as such, but I think they might be dia compe. They say SC in small letters. The cable clamps and stops are all dia compe, so I'm just thinking they are dia compe.

The bike has an amazingly nice ride to it. Stiff enough but enough compliance that it doesn't transmit all the road noise.