[Jonty30]

You’re probably right 400x.

I just checked, it’s about 500 atmospheres.
https://www.ocregister.com/2023/06/20/how-deep-the-ocean-is-at-the-titanic-wreckage-might-surprise-you/

[TexasGator]

“I just checked, it’s about 500 atmospheres.”

Per your link that is at 5000 meters. The Titanic is at 3800 meters.