This particular watch, the Benrus 763 series watch is a homage to the Benrus Military watch issued in the early 60s and 70s. Sadly the watch is only available in Japan. It comes in 2 models, BR763 Olive and BR763 Black. The watch is Swiss made.
Size: diameter 35 mm, height 8 mm, lug width 16 mm
Water resistant: 3 ATM
Movement: Swiss Quartz cal. 763
I guess if you are interested, I am sure our friendly Japanese watch guy, Seiya san would be able to help.