Omega Speedmaster 345.0022

Omega Speedmaster Professional

Wristwatch with stop function, Ref. 345.0022, circa 1990 Case: stainless steel, number 48328630, screw-down back, bezel with tachymetre scale, diameter approx. 42 mm Movement: Hand-wound, gold-plated lever movement, number 48328630, calibre 861, fine adjustment, stop function via rocker switch, soft iron magnetism shield, 18 jewels Dial: Black, hour markers, 3 subsidiary dials for small seconds, 30-minute and 12-hour counters Accessories: Stainless steel folding clasp Case back with engraving: "Flight-qualified by NASA for all manned space missions. The first watch worn on the moon "