welcome to the forum.
i can't give much on the originality of it, but in general women's watches do not command nearly as much as men's watches. i very much doubt that yours would break this trend. could be earlier, but i'd guess 1950's-60's.
also just a suggestion, while most members on here fancy watches of various brands, as a first post you might be better off posting on a forum of the same mark as your watch of question.