The three Heuers are obviously "Bund" versions (plain, 3H, Sternzeit Reguliert) and the two on the left and the one at the front are Italian Army versions.
What is quite interesting is the comparably small size of the Breitling 817. It is also the only one that goes on a 18mm strap.
As the the cases, the three Heuers have sand-blasted-type of cases with rounded lugs, whilst the Leonidas and the Breitling 817 have shiny, edgy cases and lugs. The Zenith is a bit of a mix.
I have made the individual E.I. numbers on the last shot unrecognizable.
So, what's missing: perhaps the Sinn Bundeswehr. What else?
Cheers, HSTE