0ld JC-penny sankyo clock whats it worth?

It an old sankyo digi glo 102 clock bought at jcpennys. it still has the jc penny tag. its old enough that this was the brand new clock and its only "illuminate numerals" they originally payed 25.95 for it..its tangerine colored and its made like its from the 1950-60's its got the box and everything and it stilll works. if you know what it would be work lemme know please or if you know a website i could look on to find out! thanks! :)