Half a league under the sea...

It's hardly 20,000 leagues*, but it's still pretty impressive for a dive watch from the seventies. 

*NB - the 20,000 referred to in Jules Verne's epic 20,000 Leagues Under the Seas actually refers to the distance that Nemo's Nautilus travelled (i.e. about two and a half time round the world) rather than any particular depth. In fact, the greatest depth mentioned in the novel is a mere 4 leagues - or 12 nautical miles - under the sea.