Omega Speedmaster ST 105.012

Case Round case in stainless steel, brushed and polished, fixed bezel in stainless steel with blackened aluminum ring featuring tachymeter scale 60 to 500 ‘Dot Over 90’, screw-down solid stainless steel caseback with ‘seahorse’ Speedmaster emblem engraved, winding crown at 3 o’clock with embossed omega Greek letter, ‘pump’ chronograph pushpieces at 2 and 4 o’clock Bracelet Omega flat link bracelet in stainless steel, brushed, double folding clasp in stainless steel Dial Black matt dial, signed Omega Speedmaster, white ‘obelisk’ hour and minute hands, with tritium luminous compound, white central chronograph seconds hand, stepped luminous baguette indexes, applied Greek omega letter at 12 o’clock, recessed and grooved counters, small seconds at 9 o’clock, 30-minute counter at 3 o’clock, 12-hour counter at 6 o’clock Movement Hand-wound mechanical movement, column wheel chronograph, functions: hours, minutes, small seconds, chronograph with seconds, minute and hour counters Cal. Omega 321 (base Lemania) Ref. ST105.012 Case No. 24.***.*** D= 39 mm Year 1966