INTERNATIONAL WATCH & CO (IWC) PLATINUM.A RARE AND AELEGANT VINTAGE MEN'S PLATINUM AUTOMATIC PIE-PAN DIAL WRISTWATCH. Date: Circa 1958Movement: Signed, automatic, 21-Jewels, Cal.C.8531, No.161XXXXDial: Signed, silvered Pei-Pan, silvered applied hour batons, silvered dagger hands, silvered centre seconds hand, silvered outer applied dots minute division, date aperture at the 3 o'clock position with a silvered calendar disk and black Arabic numeralsCase: Signed, polished platinum, signed polished and brushed snap on platinum back, No.1XXXXStrap: Generic black leather, signed platinum buckleSize: 35mm Dimensions 35mm.