The back case measures 8 3/8 wide. The item "VINTAGE CHELSEA CLOCK CO BOSTON US NAVY BOAT SHIPS CLOCK PARTS" is in sale since Friday, November 19, 2021. This item is in the category "Collectibles\Decorative Collectibles\Clocks\Replacement Parts & Tools". The seller is "midwestestate" and is located in Chicago, Illinois. This item can be shipped worldwide.