SPEEDMASTER MOONWATCH FIRST WATCH IN SPACE NUMBERED EDITION, inspired by Wally Shirra's Sigma 7 mission watch; black dial with luminous silver-tone hands and index hour markers; stainless steel case equipped with fixed bezel featuring a black aluminium insert top ring; Omega calibre 1861 hand-wind movement (48-hour power reserve); screw-down winding crown, solid case back, round shape measuring 39.7 mm diameter by 14 mm thickness; brown calf skin leather strap, band width 19 mm; tang clasp and analog dial type; tachymeter functions enabled via outer minute markers alongside chronograph sub-dials displaying seconds (60), minutes (30) and hours (12); sapphire crystal with anti-reflection treatment for scratch resistance; water resistant to 50 meters / 165 feet depth. Features: Wally Shirra 1962 Numbered Edition, Swiss Made label.