Hi, I would like some help understanding if this Longines is genuine. The watch seems to be in great shape however when I open the back I see the following issues:
1) Missing screw holding the movement
2) The inside of the back case does not have Longines or any branding, just Swiss
3) The back case has just 2115 on it.
4) Recessed crown unlike this blog post
I looked at this completed ebay listing for the 19AS movement and see the screw holding the movement there
This blog past on the Longines 19AS has the same dial but different case, the back is gold etc. (ambwatches dot com/2013/04/09/1950s-longines-automatic-19as/)
I'm wondering if I should keep it or return it.
Thanks for your help!
Ebay movement pic