OMEGA (Speedmaster Professional Chronograph Ref. 145.0022) circa 1971 Superb chronograph selected by NASA in 1969 for their lunar missions. Case with bevelled handles, screwed back (numbered and engraved with the Speed logo and NASA text). Black dial with three counters. Functions: hours totalizer at 6 o'clock, small seconds at 9 o'clock, minutes at 3 o'clock. Luminescent indexes and hands, chrono arrow second hand in the center. Black bezel with tachymeter scale. Movement: Hand-wound mechanical caliber signed OMEGA 1861 (17 jewels) Swiss. Diam. 42mm. Condition: Very good condition.
