The Seiko 7017-6020 “Speed-Timer” belongs to the brand’s early generation of automatic chronographs. Produced for the Japanese domestic market, the model appeared in 1970, during a period when Seiko was rapidly developing its own automatic chronograph movements.
The watch is powered by the Seiko 7017A automatic calibre. The chronograph is operated by two pushers: the upper pusher starts and stops the timing function, while the lower pusher resets it. One of the movement’s most distinctive features is its flyback function, which allows the chronograph hand to return to zero without first stopping the mechanism, after which a new timing cycle begins immediately.
Its black dial is complemented by a bright orange central chronograph hand, clearly defined scales and a tachymeter bezel. With its distinctive case shape, early 7017 flyback movement and bold dial design, the 7017-6020 is a strong example of Seiko’s technical and stylistic experimentation in automatic chronographs around 1970.
Specifications:
Reference: 7017-6020
Serial Number: 051050
Production Date: May 1970
Movement: Seiko 7017 automatic chronograph
Functions: 60-second central chronograph, day-date display
Case Material: Stainless steel
Case Diameter: approx. 43 mm (with crown)
Case Height: approx. 12 mm
Lug-to-lug: approx. 46 mm
Lug Width: 19 mm
Dial: Original black dial with orange accents
Crystal: Original mineral glass, polished
Bezel: Fixed tachymeter scale
Bracelet: Original Seiko bracelet with replacement end links from another model
Maximum wrist size: approx. 19.5 cm (including bracelet extension)
Condition:
This Seiko 7017-6020 is in excellent vintage condition and has been fully serviced. The chronograph function works perfectly via the single pusher - start, stop, and reset are crisp and accurate. The original black dial is clean and well-preserved, with strong printing and vibrant orange detailing. The original crystal has been polished and is free of major blemishes. The case retains its original lines with only minimal signs of wear. The watch is fitted with its original Seiko bracelet, the end links are replacements from another model but fit securely. A sharp, reliable JDM chronograph with undeniable 1970s flair.
