Diameter at the dial: 38.1 mm metallic dial(39.7 mm) with gold number applies in good condition... Diameter at the movement: 36.9 mm Good Luck. The item "Pocket Watch Movement 12s hamilton 921 21 jewels 5 adj.Dial & hands OF" is in sale since Monday, August 27, 2018. This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Pocket Watches\Tools & Parts".antictac" and is located in Miami, Florida. This item can be shipped worldwide.