Hi, It looks like you've got a tough one. I could only find one reference to a Hamilton quartz clock. At first I thought you may have meant watch instead of clock, but kept digging till I found a clock reference. The one I found is for sale on OKorder. It might be that I don't have all the information or the full name of the company, I'm not sure but thought it was strange I couldn't find any information for you. The cover on an anniversary clock (if that is what you have) is not an easy piece to find. If there is more information, and you can include it, I'll see if I can do some more research for you. If not you may have to keep your eyes peeled for a cover from a different model or brand that might fit your clock. I'm really sorry I couldn't be of more help. Good luck in your search. I'll keep checking back on this question.
