If you have a problem turning pocket watch hands backward in Twelve Minutes, check on this page what you are doing wrong and why you cannot unlock certain endings.
If you're having trouble getting certain endings, especially Alone, you will learn that a pocket watch found in the bathroom has to go set backward to reach the hidden scene associated with memories. However, if the hands of your watch are moving forward, that means that you are in the wrong moment of the game to get the last endings.
For the hands to turn back, you have to get all the information from the cop, the wife, and the cop's confession about the motive. You also need to know the truth about the "monster" mentioned by the police officer when he confessed - to do this, you have to capture him, interrogate him, and show him a gift from the wife. From now on, in each subsequent loop, the hands of the watch turn backward. If you wait until they go back 2 minutes from the full hour, a special scene will show - this leads to three final endings: Alone, Continue, and Mindfulness.