Seiko. A stainless steel automatic calendar chronograph bracelet watch Model: 'The Pogue' Reference: 6139-6002 Date: Circa 1978 Movement: 17-jewel Cal.6139B automatic Dial: Sunburst yellow, applied hour luminous block markers, black outer 1/5th second divisions, further outer minute divisions on white ground, day and date apertures at 3, polished baton hands with luminous inserts, red centre chronograph hand Case: Brushed and polished tonneau form, screw down back, fixed bezel with blue and red tachymeter scale, crown flanked by twin pushers Strap/Bracelet: Fitted brushed link Buckle/Clasp: Signed folding clasp Signed: Case, dial & movement Size: 41mm Footnotes: This watch is popularly known as 'the Pogue' having been worn by Col. William R. Pogue during a NASA mission to space in 1973 making it the first automatic chronograph to be worn is space.