Rare Vintage Seiko 5 Speedtimer 6139-7000 Men’s Chronograph Sports Watch JDM 70s

Up for sale is an extremely rare vintage Seiko 5 Sports Speedtimer 6139-7000 men’s automatic chronograph sports watch produced for the Japan Domestic Market (JDM) in 1970. Based on the serial number, this example was manufactured in April 1970 making it an early production Speedtimer from Seiko’s legendary 6139 chronograph series. The Speedtimer line is highly collectible among enthusiasts as one of the world’s first automatic chronographs and remains one of Seiko’s most iconic vintage sports watches. The main chronograph hand does not reset to the correct zero position and will require adjustment. The chronograph itself is operating properly and all chronograph functions are working as intended. The watch is also running and holding accurate time over a 24 hour period. All parts of the watch are original with the exception of the aftermarket black leather strap. The watch is in good vintage physical condition with signs of use and age. The photos best describe its overall appearance and physical condition. Key Details • Brand: Seiko • Model: 5 Sports Speedtimer 6139-7000 • Movement: Automatic Chronograph • Era: 1970s • Production Date: April 1970 • Dial: Black dial with orange accents and date display • Strap: Aftermarket black leather strap • Origin: Japan Domestic Market (JDM) • Condition: Running and holding accurate time over a 24 hour period • Notes: Main chronograph hand requires adjustment to reset to the correct zero position An exceptionally rare early Seiko Speedtimer that represents an important chapter in chronograph history. A standout piece for any serious vintage Seiko collection. Ships carefully. Feel free to message me with any questions.