Out of curiosity I did a little searching and OMG Internet -- I found this lovely compilation of Navy slang. Dunno if the proper term for "sea wife" is in there, but it sure was fun looking. Sixty-seven pages! Including a bibliography!
goatlocker.org/resources/nav/navyslang.pdf
Very helpful. I was in the Canadian Naval Reserve when I was 20, and learned their slang. It was different, derived mostly from the British Navy.
One of my favorites was 'Nelson's Blood', slang for Navy overproof rum. The legend behind it was that when Admiral Horatio Nelson was killed at Trafalgar, they put his body in a barrel of rum to make the trip back to England. When they reached Portsmouth, they found a hole had been drilled in the barrel and the rum was gone. (Most likely apocryphal but still good for a squick.)
DB