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They also issued a Swiss Army edition;
https://watchbase.com/omega/seamaster-diver-300m/210-30-42-20-01-003
I suppose the closest thing available to the general public would be one of the ceramic no-date 300Ms, but there are obviously several major differences. I'd be all over a 40mm no-date 300M---especially if they dropped the HE valve. A true counterpart to the 124060 and its predecessors. (I know, the heritage models---but I mean one with the basic form-factor of the current 300M.)
FWIW, I work alongside a lot of active duty military personnel, and when they deploy they tend to wear G-Shocks. An expensive luxury watch--no matter how cool it looks and how custom-made it might be for their rates--is not something they'd seriously consider wearing and keeping track of. Can't speak for the Danish army, but I suspect these are bijoux to be kept safe at home.