Bulova 1969 Sea King
This certainly appears to be a 1969 Sea King. I found a couple other examples of the exact dial style including the numerals and the Sea King - Whale - Automatic designation. You're seeing the eBay seller's pics, they're better than I could take. The strap isn't to my liking, I have a NOS period correct black lizard strap on the way.
This is my first vintage watch, I think it's stunning, and I'm in love with it.
OH! I did a 12 hour timing...12 hours on the watch was 11:59:43.17 on a stopwatch. I'm guessing that's pretty good?
Any thoughts and comments welcome.