18 karat pocket watch

hi
This is my 18 karat gold pocket watch
The chain is 24 karat.
I received it from my grandmother
She got it from the mad who she bought her house off.
And he got it from his father from a private school for helping
There is a message at the back dating 1896.
We got it valued and it is worth €5,000
What do you think?
Thank you