Seiko Prospex Speedtimer 'Pogue' SSC947P1

In 1969, Seiko introduced the world's first automatic chronograph featuring both a vertical clutch and a column wheel, known as the Seiko Speedtimer. One piece from the initial 6139 Speedtimer series gained fame as the first automatic chronograph to venture into space: in the 1970s, NASA astronaut Colonel William Pogue took this original chronograph on a mission to Skylab, the first US space station. The watch earned the nickname 'Pogue' after its notable wearer. Case Thickness: 13.0mm Case Diameter: 41.4mm Lug-to-lug: 45.9mm