I recently bought this Climber on a trip to London. It is available in the Victorinox Flasghip Store New Bond Street. On the front of the ruby red scales you can see the coordinates where the flagship store is located. The back scale features a (faux) skyline of London, including the Shard, the London Eye and the Tower Bridge. The skyline is printed in white, as is the text on the front. Brunnen, Ibach, Düsseldorf, Rio de Janeiro and São Paolo versions exist as well, and probably more.
You could probably buy this knife somewhere online as well, but I think as a souvenir knife you should really get it in the Bond Street Store. By the way, you can build your own Spartan there, they have a genuine SAK assembly machine.