Omega, Speedmaster, Ref. ST 145022, Mvt no. 4558xxxx, circa 1990. A beautiful and legendary chronograph in steel, black tachometric bezel, black dial, external minute track, luminous hands and hour markers, permanent seconds at 9 o'clock, 30-minute and 12-hour totalizers. Screw-down caseback, dust cover, calibre 861 hand-wound mechanical movement. In excellent working condition, micro-scratches on case and plexiglass. Very nice eggshell patina on the tritium indexes. Supplied on an anonymous new leather strap. The Speedmaster is probably OMEGA's most emblematic model, notably for equipping the APOLLO space missions. Equipped with the 861 movement and tritium indexes whose patina evolves over time, this reference is an affordable must-have for vintage enthusiasts. Diam 42 mm A very fine and legendary stainless steel chronograph, black tachymeter bezel, black dial, outer minute-track, luminous patinated hands and indexes, permanent seconds at 9, 30mn and 12h registers. Screwed-back, dust cover, mechanical movement with manual winding caliber 861. In excellent general and working condition, micro scratches from use on the box and the plexiglass. Very nice eggshell patina of the tritium indexes. Supplied on a new anonymous leather strap. The Speedmaster model is probably the most emblematic model from OMEGA, particularly recognized for having equipped the APOLLO space missions. This reference, with the 861 movement and tritium indexes whose patina evolves over time, is a real affordable "must have" for vintage fans.