Hello,My name isCustomerand I would love to help.Take a look on the back of the clock or inside the door for a serial number plate. It would be a rectangular tag.
Also look a look on the parts on the inside (the movement) for a maker's logo (if you can get to it, some clocks do not have that area exposed).
Also look on the dial towards the bottom, sometimes the maker is in tiny print.
You can use the Add Files feature on your screen to add pictures of any marks or labels that you find. I am betting with this clock, that there is a serial number tag on the back bottom case of the clock. Do not move it away from the wall without help.