if its an authentic Gucci watch it could be worth up to $1000 but the cheaper models sell for $70 so yours could be a good one or a cheap one . no photo makes it hard to say which it is

I found one online that's listed as mens gucci quatrz watch and is priced at $150.97 new

yes lots. gucci is designer, so its worth at least a few thousand maybe into ten thousands

yes