tritium is gone and there's nothing to do about that. I agree with Jester and you can see the evolution of design and I think Panerai struck the jackpot with the color of the case, the sandwich dial and the thick cut fonts. The 26A will always be the original, rare, neo-vintage etc, but I would not underestimate the strong character of 26K.
We planned to meet up to do a comparison review of 26A and 26K, but s o m e b o d y didn't show up
Cheers,
Asi