Brand: Heuer Model: Gents manual wind Wristwatch Chronograph ” Autavia ” so called ” Mario Andretti “ Age ca.: 1960s Warranty: 6 months Origin: Switzerland Case / Ref.: screwed Stainless Steel Case # 88.475, 432, Ref. 3646M Dial: black original Dial, 45 – Minute – Register, applied Steel Markers, Steel luminous Hands, original (but aged) revolving bezel with 60 Minute – Graduation Movement: 17 Jewel Movement signed HEUER LEONIDAS, Cal. 92 ( Valjoux ), Shock – Protection ” Incabloc “, Band / Buckle: black unused signed KAUFMANN Leatherstrap with unsigned Steel Tang Buckle, both added later to the watch Band Width: 19,0 mm Condition: in original unpolished condition, the bezel shows some aging ( see fotos ), working perfectly in all functions Remarks: in all original unpolished condition, 100 % authentic Diameter: 38,5 mm Height: 12,4 mm Lug to Lug: 48,0 mm Original Box: no Original Papers: no Guarantee Card: no