![5 SPORTS Speed-Timer" 6139, a Wristwatch that Experienced Space Travel, the First Automatic Chronograph | THE SEIKO MUSEUM GINZA 5 SPORTS Speed-Timer" 6139, a Wristwatch that Experienced Space Travel, the First Automatic Chronograph | THE SEIKO MUSEUM GINZA](https://museum.seiko.co.jp/en/uploads/index_im22.jpg)
5 SPORTS Speed-Timer" 6139, a Wristwatch that Experienced Space Travel, the First Automatic Chronograph | THE SEIKO MUSEUM GINZA
![File:Seiko Automatic-Chronograph Cal. 6139 mit gelbem Zifferblatt, die sogenannte „Pogue Seiko“.jpg - Wikimedia Commons File:Seiko Automatic-Chronograph Cal. 6139 mit gelbem Zifferblatt, die sogenannte „Pogue Seiko“.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/b/b4/Seiko_Automatic-Chronograph_Cal._6139_mit_gelbem_Zifferblatt%2C_die_sogenannte_%E2%80%9EPogue_Seiko%E2%80%9C.jpg)
File:Seiko Automatic-Chronograph Cal. 6139 mit gelbem Zifferblatt, die sogenannte „Pogue Seiko“.jpg - Wikimedia Commons
![5 SPORTS Speed-Timer" 6139, a Wristwatch that Experienced Space Travel, the First Automatic Chronograph | THE SEIKO MUSEUM GINZA 5 SPORTS Speed-Timer" 6139, a Wristwatch that Experienced Space Travel, the First Automatic Chronograph | THE SEIKO MUSEUM GINZA](https://museum.seiko.co.jp/en/uploads/index_im23.jpg)
5 SPORTS Speed-Timer" 6139, a Wristwatch that Experienced Space Travel, the First Automatic Chronograph | THE SEIKO MUSEUM GINZA
![Time and Watches on Twitter: "With the new #Prospex Automatic Chronograph 50th Anniversary, #Seiko celebrates an important milestone in its history: the 1969 release of Caliber 6139, one of the world's first Time and Watches on Twitter: "With the new #Prospex Automatic Chronograph 50th Anniversary, #Seiko celebrates an important milestone in its history: the 1969 release of Caliber 6139, one of the world's first](https://pbs.twimg.com/media/EGHIhxgWsAAPyym.jpg:large)