for the excellent post! I have admired the Aquanaut ever since it hit the market 24 years ago. I bought one of the first ones from an AD in Philadelphia. They are excellent watches. I prefer the Aquanaut over the Nautilus. The Aquanaut is more spare, more minimal and therefore ( to my eye) a more elegant watch. That’s why I prefer a 3970 over a 5970. I love Patek when they are at their “Minimal Best”. Truth is,I never met a Patek Philippe that I didn’t like.