OMEGA Steel chronograph watch, "Speedmaster Apollo XI" collection, graduated tachometric bezel, round dial with black background, 3 counters including second hand at 9 o'clock, hand-wound mechanical movement (calibre 863: signed and numbered, visible through skeleton back with sapphire crystal). Case diameter approx. 42 mm, back engraved "First watch worn on the Moon - SPEEDMASTER - APOLLO XI", black enamel (missing). Slight scratches to the glass. Original steel bracelet with articulated links and steel folding clasp signed.