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Omega Speedmaster*** 3590.50 Blue Seal*** 1991
OMEGA Speedmaster, 3590.50, 1991
Serial: 48268403
Circa: 1991
Reference No.: 3590.50

CASE: 42mm Stainless Steel, lyre lug moonwatch case, acrylic crystal, black tachymeter bezel

DIAL: Black matte dial with three chronograph registers, tritium hour markers

MOVEMENT: Caliber 861, hand wound mechanical chronograph, 17 jewels

BRACELET: Original Omega stainless steel bracelet Ref 1479/812

CONDITION REPORT: Excellent overall condition. Nice cream patina on the indexes. Blue seal still intact on the caseback attests to the untouched condition of this watch.

NOTES: According to the Omega Museum, the present watch was produced on May 2, 1991 and delivered to Japan. We did not order the archives extract.

The Omega Speedmaster Professional Chronograph, also known as the "Moonwatch", is famous for being the watch worn by astronauts during the first Moon landing.
NASA’s harsh and intense qualification tests leading up to the Apollo 11 mission examined several watches from Switzerland’s top manufacturers such as Breitling, Rolex and Omega; the testing was concluded in March 1965 with the final selection awarded to the Omega Speedmaster, because it stood apart from the rest as it continuously kept within 5 seconds accuracy in its per day rate. As a result, it became the official watch of the U.S. space program and lated became known as the Moonwatch.

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