HELP IDENTIFICATION WATCH BRACELET LADY REFERENCE AND YEAR

Good evening, I would need you to help me identify model and year of
manufacture of this lady wristwatch. I went to a dealer authorized, but they
have only been able to indicate to me that it deals with almost all security
of a piece of the 50s. The dial is in white gold surrounded by small diamonds
and the strap is mesh. The operation is manual winding. I'm not interested in
the sale of the piece but if in knowing something more of its history since it
has a great emotional value for me because of the circumstances in which it
has reached my hands. Now I have left it to be cleaned and polished outside
that works correctly and my intention is to use it, so in the pictures it's It
is possible that the details are not well appreciated. I thank you in advance
for your help.

Yes of course. I'm sorry.