["I found my deceased grandfathers watch in an old box in my parents attic. It is actually quite valuable, but I don't think I could bring myself to sell it. It has way too much meaning to myself and my family."]
I believe there are things in life that are irreplaceable and priceless! There is no amount of money that can give you the true value of your grandfather's watch. I think you should pass it down to your grandchildren.
I found my deceased grandfathers watch in an old box in my parents attic.  It is actually quite valuable, but I don't think I could bring myself to sell it.  It has way too much meaning to myself and my family.