Omega Speedmaster Professional 145.022 - 68 ST

Omega Speedmaster Professional "Pre-Moon"

Wristwatch with stopwatch function, Ref. 145.022-68 ST, circa 1968 watch case: stainless steel, screw-down back, tachymeter bezel, diameter approx. 42 mm movement: manual winding, copper-coated anchor movement, number 274324485, caliber 861, fine adjustment, stop function via rocker switch, soft iron magnetism shielding, 17 jewels dial: black, hour markers, 3 subdials for small seconds, 30-minute and 12-hour counters accessories: Folding clasp, stainless steel Reference 145.022-68 was the first version of the "Moonwatch" with the caliber 861 movement, which replaced the caliber 321. Original Omega strap 1479/812, added later, original service crown, original service pushers, case with pressure marks.