Omega Speedmaster Professional X-33 analog-digital watch for use on the Space Shuttle, featuring a 41mm titanium case on a standard black Omega bracelet, engraved on the caseback with NASA part numbers: "P/N 528-20991-1, S/N 1121." Includes a bag with affixed deaccession label, identifying this "Crew Pref, Watch Chronograph" as a Class III item, annotated in ballpoint, "Works." In fine cosmetic condition, with some minor scuffs and scratches to the crystal and bezel; the band exhibits some wear and creasing. Function untested.
Though more famous for the Speedmaster 'Moon Watch' used during the Apollo era, Omega's space heritage continued during the late 1990s with the Speedmaster X-33—a watch with modern amenities including a hybrid analog-digital display. In addition to the traditional hours, minutes, and seconds indicated by analog means, the digital portion offered extensive functions including universal GMT time, a perpetual calendar, and a chronograph.
Provenance: The Spaceflight America Museum and Science Center in Prince Frederick, MD.
Terms and abbreviations used in our descriptions.