This is the third generation of military Vostok NVCH-30 watches.

Very little is know about these watches. A final batch of watches were ordered by the Soviet government between 1988 and 1990. The watch comes in a type 320 amphibia case with a 2409A movement.

Just like the other two generations this one got a thicker caseback and crystal. This version got an antimagnetic shield which is also printed on the dial.

The 3th generation is waterproof to a depth of 300m.