Junghans Quartz Clock W738-Working

A battery powered clock made in Germany by Junghans, somewhere between 1970, when they introduced the clock, and the 1990s. It is white with a brass colored rim. I ran it for 24 hours and it gained or lost no time. There is nothing on the back to hang it rest it on so it must be leaned against a wall. The body of the clock is 9 3/4" square.