Grandma Fuller's watch

I dont know if anyone else will care about this, but when I went to mom & dad's in August, I found Grandma's watch! (It was displayed on a bookshelf.)  I dont know if ya'll will remember that Grandpa gave that to me when I was 16.  I left it in my pocket, and it also got washed in the washing machine when I was 16.  I paid my entire bonus to get it fixed this August, and this is how it turned out! I think it looks amazing.  I also found a 1940  advertisement that has that watch on it.  Right now there is a original watch box for it on eBay. Im struggling with trying to decide if I should buy it.  It was $18 back then.  That's $290 in today's money, and is solid gold.  It's very tiny, the face is the same size as a dime.  I love this watch because it was Grandma's.  I wish I knew the story behind it, since that was a ton of money back then and it must of been a very special occasion. Love it!