It says 963g on the back and 3ATM water resistant on it. The face says Swiss made as well as the back. And it obviously says Mont Blanc. How can I find out if it's real or how to find out how much it's worth?
Mont Blancs are low-mid end luxury watches, and as such, go for anywhere between $500 to $5,000 (on average). Some may go for less, a few for more (special editions etc). Unfortunately, this also means that they are very highly pirated -- so, there's a good chance that like a Rolex, your Mont Blanc could be an original, or a fake.
You should take it to a jeweler who should be able to tell you if a watch is original or not. Depending on where you live, you could also look for an Authorized Dealer (or an AD) and take the watch to them. They may be able to help you.
However, I would not leave the watch behind with an AD if they ask you to. The reason being that if your watch is indeed fake, they may sometimes destroy the watch since it is an unauthorized replica.
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