Breitling Cosmonaute 0819

Breitling. A stainless steel pilot's calculating chronograph

Cosmonaute, Ref: 0819, 11525/67, Case no. 1247737, 1970's 17-jewel manual winding Venus 178 column wheel chronograph movement, black dial with luminous 24-hour numerals within silvered rotating circular slide rule bezel and tachymeter scales, subsidiary dials for 30-minute and 12-hour registers and continuous seconds, luminous hands, orange sweep hands, steel tonneau screw back case with round chronograph pushers and additional crown to rotate bezel, leather strap 47mm