About to take the dive, help required

[Pazza]

Hi Folks,

I am a Rolex fan normally have a Submariner and a day date in white gold. I want another sports type watch and am now loving the Pams.

I am based in Dubai and the local AD has the following in stock.

Pam 164 - USD 5900, I love the brown deployment clasp on this and do like the face. I think I prefer the date window in this model.

Pam 312 - USD 6800. I do like this too, but is it worth more than the 164?

Any help suggestions would be much appreciated or alternatives. I am happy to go up to approx 8000 USD for the right watch.

Thanks
Paz