OMEGA, Speedmaster ref. ST 145022 42 mm chronograph wristwatch. Circular case, graduated bezel with tachometric scale. Signed black dial with baton hour markers, white luminescent hands and second hand. Seconds sub-counter at nine o'clock. The second hand and two sub-counters at three and six o'clock display the chronograph functions. Screw-down caseback, signed on the outside with the words "Flight-qualified by Nasa for all manned space missions. The first watch worn on the moon", signed and internally referenced ST 145022. Hand-wound mechanical movement, calibre 861, signed and numbered. Signed steel bracelet with folding clasp, reference 1479 (with additional links). Black leather strap with OMEGA buckle, signed. Purchase date: 1993. Excellent condition. With international warranty card.