This handsome pocket watch is vintage circa 1930's/40's. The measurements are 2 5/8th inches from top to bottom and the watch itself measures 2 inches in diameter. The back has the initials "P E" engraved into a diamond shape.The back unscrews so I was able to see the markings inside. On the watch workings area are these marks "Knickerbocker Watch Co New York", "Seven Jewels", "F.Cornioly", "2 Adjustments" and "Swiss". On the inside of the watch case back is stamped, "Illinois Watch Case Co, Elgin USA, Guranteed 10 Years, Supreme, 2537366". This piece is in very good condition and keeps time. There are the usual slight surface scratches on the back side of the case.