Continuing the run of Invicter Grand Divers, a rather unusual piece that features an early Seiko export movement, the NH25A, all wrapped up with a pretty red face/bezel and a two-tone (or, if you're from Panama, "tutone") case and bracelet ...
Seiko 5 Field Watch (SRP275; 4R36) on sage green Marathon Mil-Spec "zulu".
The impossible to find mythical one with hand-wind, hacking and drilled lugs. These came and went very quickly in 2013. It would be a decent military watch except for one deal-breaker: the dead flat hardlex crystal that's like a signalling mirror. Sunlight reflecting from it can be seen for well over a mile. A good military watch will have a convex domed crystal to prevent that, and it doesn't take much (e.g. Hamilton's Khaki field watches).