Are you curious about the 2 brands, or those 2 individual watches? Out of those 2 pieces, there's no question. The nautilus is arguably the best "sports watch", (who would play a sport rocking this?!), ever made. The roo, especially the one pictured, is a over the top version of arguably the 2nd best "sport watch" ever, the royal oak. So the nautilus wins this one every time. Now between the 2 manufactures? Splitting hairs. They're both fantastic manufactures. Pp will retain it's value better, but you should consider yourself blessed to own either pp or ap IMO.