This watch is clearly a child of the 70s. The movement comes from the forge of Pforzheimer watch Rohwerke GmbH (PUW) and is held by an encasing ring made of plastic.
The steel bracelet is original and is held with a "father" connection on the case that is not so often to be seen.
Here is the second variant of a direct read by Junghans, with best thanks to M. Bütow. The bracelet is original.
Unfortunately, the leather strap dissolves into its components and crumbles strong. The watch is still unrestored.
Here is not the PUW 1560 D at work.