That`s a lovely looking pocket watch. Sorry I can`t help with the movement but I agree it needs to be preserved .
My son in law inherited an old pocket watch from his Grandfather also, like yours not working, apologies I cannot remember the make.
I used a chap on the Isle of Bute, About Us | Michael Swift Horologist - Clock and Watch Servicing, from memory it was around £80-£90 to repair.
regards, Daz.