The weight of this clock is attached to the chain, which goes up and around the sprocket, drapes back down the right side, and then the other end is pinned to the bottom of the weight, completing the loop. Making the chain loop back to the weight is very important, because otherwise, as the weight falls, more chain will be on the left than on the right. The chain itself has a significant amount of weight, and if there's more on the left than the right, the clock will run faster. Read More...