I need your expert views on the following watches:
From my grand grand pa I have got 1900 Grand Prix Paris, 14K Longines, with 1259841 id number and HY Morcer and Ce, 14k, 34828 ID number, quality vermez, echappement a ancre xierres.
Phohots attached (sory for bad quality). Can someone give some info on these watches, rough idea on value, etc.
Watches are not working, not sure if any problem, but most likely not used for more than 80 years now.
I do not know the age of Morcer, as cold not find production year on it.