HEUER RARE AUTAVIA 2446C MARK I.A MEN'S STAINLESS STEEL VINTAGE MANUAL CHRONOGRAPH WRISTWATCH. Model: Autavia 2446C Mark IDate: Circa 1968/69Case reference: 2446C Movement: Signed "Heuer Leonidas", manual, 17-Jewels, Cal. Valjoux 72 Dial: Signed, black, silvered baton hour markers with green luminous tips, white and red outer minute division, silvered sword hands with green luminous insert, white centre seconds hand for chronograph seconds, subsidiary dial at the 9 o'clock position for seconds, subsidiary dial at the 3 o'clock position for 30-minute chronograph and subsidiary dial at the 6 o'clock position for chronograph hoursCase: Signed, unpolished brushed and polished stainless steel, black bi-directional MH (minute/hour) bezel with silvered Arabic numerals, stainless steel crown and chronograph pushers, snap on back, 380 FT underwater, No. 110XXXStrap: Signed Eberhard black leather strap with stainless steel buckleSize: 40mm Dimensions 40mm.