HEUER. AN ATTRACTIVE STAINLESS STEEL TONNEAU-SHAPED AUTOMATIC CHRONOGRAPH WRISTWATCH WITH DATE SIGNED AUTAVIA, HEUER, CHRONOGRAPH, REF. 1163, "ORANGE BOY" MODEL, CASE NO. 242’141, CIRCA 1970 Movement: cal. 12, automatic, 17 jewels, signed Dial: signed Case: screw back, 43 mm. wide, 47 mm. overall length, signed