Hi, I recently discovered a family heirloom while packing to move. It is a Howard pocket watch however it doesn't quite fit in it's box. Also on the enclosed contract attached to the box, numbers have been changed. An example is the original movement number 1066809 has the number 110?162 and the case number originally 200490 now reads 200721 number of jewels originally 21 now reads 23. Despite reading "how to open a watch" I will need an expert. It is a beautiful pocket watch but with number discrepancies, would it lessen it's value?