I have a very old Favre Leuba "Geneve" womens dress watch that got handed down to me from my grandmother and I think it was her mothers. It is all 10k gold except for back, the face is oval and the color is blue, it reminds of the ocean. The band is like a mesh and it's also 10k gold w/ the chain still atatched to the band. It is so beautiful and I would love to know what era it came from. Any help is good help, thank you. Can't find it anywhere.