HMS Empress of India, most likely.
I’m not aware of HMS Empress of India. I’ll have to check out the history of that Wreck. My first thought when “dive-able battleship wrecks” entered into it was the German WW1 dreadnoughts in Scapa Flow. Some of those wrecks were raised, others have been partially salvaged, but a few are still there. They are a diver attraction.
Whew! That’s a pretty deep wreck for my taste. 150fsw, give or take. If I had seen a crab that big I would be certain that I was narc’ed & if I still had my wits about me I’d be terminating the dive. This guy (assuming it was this wreck) decides to wrestle with that crab? I don’t know if he was incredibly brave or just foolish (& lucky).