Here's another site selling the P6341 with a real-world photo. I'm guessing the photos on the Porsche site and other press photos are a pre-production model, and they changed the design slightly when they started manufacturing them.
That might be a picture of a prototype or something cause I found a site selling a genuine 6341 here and the subdial markings are white. Anyway, it doesn't bother me too much and I ordered one from Puretime yesterday.
I vote for the 03-92 (in fact I just bought one myself yesterday). It's the most accurate out of the 3 you posted.
I also have the 39mm 01-92 and, while it's a nice watch, it just feels too small after wearing Panerais. The strap does suck, and I can't change mine either cause it feels like the lug screws are glued in or something.
I'd be interested in this and the chronograph version. Also, from the pictures in this ebay auction the BR03s don't have screws on the back, so we wouldn't have to worry about the fake screws thing like on the BR-01 reps.