Questions about Panerai

[baseballduck]

I have a few questions for you guys about Panerai. Some may possibly stupid, but hey I'm learning. Anyway what is the difference between a Luminor Marina and a Luminor Base? Is one hand-wound and the other automatic or something? While I'm on that, I have a question about hand-wound movements. How often do they have to be wound, and do they keep time just as good as an auto? My other question is this. What is the most inexpensive watch that they make in the 44mm range with the crown guard. Nothing fancy, just with the sweeping seconds with a black dial on a strap. Last question I promise. What is the most inexpensive watch they make like stated before except with a titanium case, and are the titanium watches much lighter? Sorry for all the questions, but I'm just.

Thanks, Tyler