Not sure if ok to post this here as it is a battery clock. My buddy has one and his is missing the weight on the back of the c cell battery powered movement. just want to get a idea as to what weight looks like and diameter of it.I thought about 100 grams in weight, not sure what that is in ounces. Any other info would be nice or even a catalog advertisement for this clock.he was told these went for around 300 something in the 1960,s. Thanks to all for help.