Here is the 2nd family pocket watch I received. Google hasn't helped as much with this watch as with the Hamilton.
The only markings on this one are... - And what Google tells me...
CYLINDRE - cylinder escapement, probably French made
Huit Rubis - eight jewels
Aiguilles - translates to Needles, I'm guessing it indicates which key sets the time.
Inside both backs only have the serial number. I'm guessing the case is silver (plated maybe?) because of the tarnishing. The plastic crystal doesn't seem to be original & it doesn't fit properly. The front can't be snapped shut with it installed. I plan to get it checked soon, then serviced & cleaned if it is worth it.