I thought diamond nautilis armor was like a 1% chance, and this shipwreck had 2!
It was also really random that I stumbled upon this, I wanted to do an All Advancements run, and not even 20 seconds in, I saw this and I just had to record it (different world cuz I had to grab the seed)
Seed: 1173385164976742612
by No_Dingo6694