Antique Pocket Watch Questions

Pocket .. antique watch?

I have a gold pocket watch, now my question is how am I supposed to know how krts gold is it?? If this is real gold? and it is a rare antique or a pocket watch trash .. an old friend gave it to me long ago and I want also whether its value really care??

I'm one too and I have no idea. it was my grandfathers. Just go a JEWL and knowledge.

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