So, I found this watch on the street a couple of years ago and just put it somewhere on my room. Today, while looking for something else, I came across it again and realized it said it was swiss, so I investigated about the brand and fount out it's actually a bit expensive brand, so I want to know if this watch is fake, and how can I know how much its worth it. It needs some repairs, like one of the hands is loose (the one that marks the day) and one of the button is also loose. And, I want to know if it's worth it to try to get it fixed.
Thank you very much, I attach some pics.
PD: Even if the watch is real (which I doubt since I looked for the model and couldnt find a pic like mine, and also all of this series is round and mine is square), the strap is not the original, since it says Alfa Italy, Antiallergic leather.

on the back it says MANUFACTURE EN SUISSE CHRONOCRAPHE 50M A68062 No 1111



PD: id like to know why it's fake, not a long explanation, only a little one. Thank you again!