Here is an informative page about those watches: http://en.wikipedia.org/wiki/Panerai. You could also look on amazon or eBay for pricing on the brand.
You can buy panerai watches either online at their official site or at the jewelry store at your local mall. Both have a good inventory of the watches.
A variety of retailers offer discounts on Panerai watches. One can find information regarding this subject on Panerai's website. One can also ask a relative that has knowledge about this subject.
Panerai is a company that's been around for quite some time and has a reputation for "vintage" watches. Yes, Panerai is good quality and expensive. You will find what you are looking for.
Panerai Luminor Marina are exclusive, luxurious watches so they can be categorized as jewelry. Buying one of these watches could be a good investment. Use caution when buying one off the street or secondhand.
Their are many stores that carry Panerai watches it would depend on your location. In London I would try The Watch Gallery 129 Fulham Road London SW3 6RT
Panerai watches come in four major lines of watches, Historic, Contemporary, Manifattura and Special Editions. Most of the watches are produced in a limited quantity. The official website for the watches is ( http://www.paneraicollection.com/eng ). On the website click the boutique tab and it will direct you to a world wide map of boutiques that sell these watches.
The very high end Panerai watches are popular with the wealthy. The most popular version of this watch brand is the PAM Luminor, which is made out of titanium.
The Panerai is an Italian watch company but are produced in Switzerland, they make watches that are special editions and are limited, these watches are very fashionable and versatile.
It depends on the watch or jewelry that you buy. If you want to go with a more luxurious style, it is highly likely that the price is going to be higher for products.
Yes, they do supply watches to the Italian Royal Navy. These watches are expensive, but the price range varies and it depends on the materials of the watch.
Go on Amazon.com or eBay. I'm 99% sure they have them on there. You could also go on their official website to see if they ship watches. Retailers for watches might have them too. Not sure about prices though.
Go to the official panerai watch site to learn more about the watch itself along with company history and other products they offer. The site has many reviews to read up on also.