I don't agree with what is said upstairs. The two photos of Longines movement provided by friends upstairs are not genuine movements, which can't explain the problem correctly. It can't be proved that the watches are placed in different positions, and the movement components that can be seen are different.

Longines) master? Collection? Master series L2.693.4.78.3 Mechanical men's watch is based on ETA? A07.23 1 Basic movement regrinding improved L696.2 automatic winding mechanical timing movement (see the figure below).

I will provide you with a back view photo of Longines L2.693.4.78.3 mechanical men's watch. Although it's a little small, you can still see the details. You can see the difference by comparison.

You can be sure that your Longines watch is highly imitated, because Longines rarely engrave logo directly on the movement pendulum. My humble opinion, if you have different opinions, you can leave a message to exchange.