There both are aliens in the PP collection...
There really so comfortable.. The steel strap are amazing, so comfortable..
and the caoutchouc is perfect for summer...
Very thin pieces compared to other diving watches (Sub, 50, ....).
So many people disagree their designs.
For the actual version, I can't fail to notice the difference of price...
The two simple models have the same mouvement (324), and one is 20k and the other 10K....
So I would prefer a simple Aquanaut and a complicated Nautilus with 240 (like the 5712)
IMHO