Longines Sport Chief gold on steel

Another beautiful Longines no date, manual caliber 280 movement. Quite spotless dial, hands and movement. Stainless steel case that is covered on the front by a 18 karat gold cap. The crown is a service replacement, otherwise totally original (look at the movement: superbly finished with gold bushings fixing the jewels to the bridge and still using screws on the balance wheel!) Case dimensions are 33,7 mm diameter and 8,2 mm thickness. Date ca 1965.