My name is ***** ***** I would love to help. Please add photos of the watch and one photo of the movement. The movement is found behind a cuvee' (dust cover) and will have words and numbers printed on it. This is the where the actual serial number of the watch is located. There is usually a small indentation or lip there where you get leverage enough to pop it open. The number you have provided that is on the inside case refers to the case maker and not the watch maker, which is a common misunderstanding. You can use the Add Files feature on your screen to add pictures.