Omega, Speedmaster Professional X-33, Ref. TS 186. Late 1990's, 1st generation. Titanium and stainless steel quartz wristwatch with square button chronograph, gray multifunction digital display and analogue display. Accompanied by the original fitted box.
Case: Three-body, solid, polished and brushed, revolving titanium bezel with serrated edges and polished top, four stainless steel square-shaped push buttons and a crown protected by a crown guard, lyre-shape lugs, double case back (for high sonorous level) secured with 9 screws, sapphire crystal.
Dial: Gray multifunction digital display (green when illuminated), framed by luminous baton indexes on a straight black reserve and outer minute/seconds and 1/5th seconds divisions on an inclined black reserve. Luminous white “arrow” hands, red-tipped dart seconds hand.
Movement: Cal. 1666 with quartz standardization.
Accompanied by Omega original box.
Diameter. 42.5 mm. Thickness 15 mm.
The Speedmaster Professional X-33 is also known as the “Mars Watch”. Standard analogue displays indicate the hour, minutes and seconds. The digital display, showing the time and date, also has countdown, chronograph and alarm functions. The special digital functions include mission elapsed time and universal time. The Speedmaster Professional X-33 was designed and tested over five years in co-operation with American, Russian and European astronauts, as well as professional pilots from the U.S. Navy`s Blue Angels and the US Air Force`s Thunderbirds squadrons.
The watch integrated the latest technical features required by professional flight and space crew, including a 24- hour alarm sound system with a loudness of at least 80 decibels that is audible over the reverberating noises and echoes inside the space shuttle. In line with guidance from astronauts, the X-33 also has bigger and clearer numbers and letters on an enlarged digital display. To be “flight qualified”, it is accurate to within -0.3 to +0.5 seconds per day. The X-33, which has a titanium case, is also water, pressure and shock resistant to high standards and can withstand extreme temperatures ranging from -20 degrees to +70 degrees centigrade.
The name “X-33” was originally used by Omega watchmakers as a code name in the development of the watch, but was kept on as its commercial name.
Omega made two separate production versions of the Speedmaster Professional X-33. The first version released in 1998 is commonly known as the First Generation X-33 with a polished bidirectional bezel with a red marker, and polished pushers. In 2001 Omega released an updated version of the X-33 known as the 2nd Generation model which was discontinued in 2003.
In 2014, Omega reintroduced the Speedmaster X-33 with the "Skywalker" which many consider the third third Generation of this cult model.