Nope. JFK's yacht was the "Honey Fitz" and the engraved bell was not on his yacht. The bell was on the yacht "Eye Of The Wind" used in the movie "White Squall" which is where the phrase Where We Go One We Go All originated. Q alluded to the movie but he never said the bell was on JFK's yacht. I assume that came from some anons but it's bad info.

https://www.eyeofthewind.net/en/ship/crew/11-schiff

The ship's bell of the Eye of the Wind serves as an acoustic signal during foggy weather, and it also indicates the length of the chain during an anchoring maneuver. In the old days the bell was also used to indicate the time of day. In one scene of the Hollywood-movie "White Squall" this bell with its engraving WHERE WE GO ONE - WE GO ALL plays an important role. In the audio file you hear the spoken words "Where we go one - we go all" and two double-chimes of the bell. Striking the bell that way means either 2 o'clock, 6 o'clock or 10 o'clock. It also indicates that the shift for the watch in command is halfway over. The audio file has a length of approximately five seconds. Download the audio files for free just by clicking on the particular image.