I have a few Questions

I looked a A Vacherone Constantin pocket watch it is 18 kt yellow gold in very nice condition however when I looked up information on the movement I was not able to find anything.

The movement has the # 327131 and I think is dated 81884 I am assuming 1884.

I would like to know anything you would be able to share with me about it. if it is a 1884, if it is rare, an idea of value if you could. (I do not want to sell) I do not have any photos yet but might be able to soon.

My name is Barry you can email me at barryheld@sbcglobal.net
Thanks,
can you also give the case number? 81884 is inscribed on the
03/13/2011 - 19:36
movement?