This yacht, I believe, belonged to the famous Big Ben Distilleries.
5 seconds sound clip from the Batman (1966) movie soundboard.
You can hear this line at 00:09:50 in the Blu-ray version of the movie.
Quote context
[...]
- You there, Mr. Merrick, of the Gotham City Times.
- According to rumor, Batman, a transatlantic yacht approaching this city simply disappeared.
- Nonsense. How can a yacht simply disappear?
- I stand on my answer, Mr. Merrick.
- This yacht, I believe, belonged to the famous Big Ben Distilleries.
- Please, no more questions about that ship.
- What about that exploding shark?
- Doubtless an unfortunate animal who chanced to swallow a floating mine.
- I wouldn't worry about that either.
[...]