Here is a 1983 era NIKKO of Japan r/c  EXPLORATION Submarine.
The EXPLORATION SUBMARINE is in clean physical condition and has no cracks or breaks.

There is a rubber membrane piece that has warped. A replacement could be found.

The EXPLORATION SUB is 20.5" long....
The original  box is  present but the cover is very worn.

I see the power pack, instruction booklet present.

Have to sell this classic in 'as found' condition as I could not get the Exploration Sub to power up.