Here we have an Antique original Seth Thomas large calendar clock lower dial. The diameter is 12 3/8 inches, the chapter ring diameter is 11 1/4 inches and the center to the middle of the slots of both sides measure to be 2 inches.See all photos and ask questions to be satisfied with this item. The item "Antique original seth thomas large calendar clock lower dial" is in sale since Friday, July 24, 2020. This item is in the category "Collectibles\Clocks\Parts & Tools\Parts". The seller is "kevorla" and is located in Chicago, Illinois. This item can be shipped worldwide.