3004. 3004Y Vacheron Constantin. A very fine and rare 18K gold manual wind concealed 20 dollars coin wristwatch with skeleton dial Vacheron Constantin. A very fine and rare 18K (750) yellow gold wind concealed 20 dollars coin wristwatch with skeleton dial mechanical movement Date: Circa 1982 Movement: Jewelled manual wind Dial: Skeleton gilt, Vacheron Constantin Maltese cross to spring barrel, black pointed hands Case: Brushed and polished inner hinged case, outer case in the form of a United States of America 20 dollars coin dated 1898, winding crown at 1, hinged front opened via push button in milled band at 3 Strap/Bracelet: Vacheron Constantin black alligator leather strap Buckle/Clasp: Signed 18K gold buckle Signed: Case, dial & movement Size: 35mm Weight: 42,51g