My "Otto Frei" Special

I don't think I ever posted a picture showing the back of this watch. I bought it around 2015 or '16 from a budding Instagram watchmaker. It has an ETA clone 6497 mechanical movement. It is one of my favorite watches. I dropped it on a carpeted floor a while back and it started to run slowly. I contacted the watchmaker and he fixed it. It looks like the cannon pinion came loose with the shock. He tightened it up and it has been running flawlessly ever since. I can stare at the back and lose track of time quickly. The watchmaker now specializes in Bulova and sells his watches online.