We think this clock may be a seth thomas mantel clock
Best thing to do is take it to an antique dealer. You might want to start out doing some independant research first. See if the company that you think made your clock has a website. Then compare the pictures. I think there is identification on the back of the metal clock face (if it’s a removable face) or on the door in the back (again if it’s able to be opened). You also might want to look up when the antique road show is coming your way and see if you can get it looked at there. If in fact it is a valuable antique and you are interested in selling the dealers on the road show make you an on the spot offer. We had a hand carved cane from the civil war in our family that we took to the road show and they made us a valuable offer for it so I know for a fact that they buy antiques at the show.