The Omega Speedmaster Professional was made famous by its 6 lunar missions. NASA in 1964 sent out letters to 10 watch brands, asking them to send in a Chronograph. Only four brands responded to NASA’s request, which was: Rolex, Longines-Wittnauer, Hamilton, and Omega, comically Hamilton sent in a pocket watch. Having all the specific requirements to achieve precise measurements, Omega continued to be tested with the many manned flights.
Its 42mm stainless steel case has polished and brushed surfaces that lead to curved tapering lugs. The crisp lines transition effortlessly around the case. A lug to lug length of 48mm ensures a comfortable fit on the wrist. A fixed tachymeter sits on its black bezel. The dial is protected by Hesalite crystal, an outer minute track with slim baton indexes that mark the hours. 3 recessed Sub-dials 60 seconds, 30 minutes, and 12 hours. Sword hands and an elegant long central chronograph seconds hand that accurately hits the minute track. The dial has perfect symmetry. Hands and indexes are lumed with Super-Luminova. The screw-down case back is engraved with “Flight - Qualified By NASA for all Manned Space Missions” “The First watch worn on the Moon” a fitting testament to man's achievements in space. Inside we have the Cal.1861, 18 jewels hand-wound Chronograph beating at 21,600 bph. It has a Rhodium-plated finish. As a manual wound movement, it is the direct descendant of the original moon watch that used the Cal. 361 movement. Fitted on a 20mm Stainless Steel bracelet with a signed clasp fits the wrist comfortably, along with all the additions you would expect with a modern Speedmaster!