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SOLD - NOS Seiko Speedtimer 6139-7020





Seiko's collection of Speed Timer watches represents exceptional vintage racing chronographs, and acquiring one can be quite challenging since they were exclusively manufactured for the Japanese market.


These models, equipped with a 21-jewel version of the renowned 6139 movement, offered a notable improvement compared to their counterparts intended for export. They also boasted several distinctive features. This particular 7020 model, produced in May of '71, is truly remarkable. It showcases a deep-set matte black dial complemented by a split, bi-color sub-register in black and vibrant blue.


The prominent "Speed Timer" logo is positioned in the middle of the dial, contrasting with the blacked-out day/date frame, which displays both English and Kanji characters.

The minute track is accented with a trim in striking "Speed Timer" orange, serving as a perfect demarcation between the dial and the glossy black count-down bezel, which can be rotated using the crown. The outer bezel features a black inlay, and the tonneau-shaped case is ergonomically contoured for comfortable wear on the wrist.


This example we have to offer is a perfect NOS example. Don’t miss your chance at this one, it surely won’t last long. 


The watch was originally found in this condition but it wasn't working. We've decided to carefully service the movement while keeping its original condition.


Ships from Tokyo, Japan.

SOLD - NOS Seiko Speedtimer 6139-7020

  • The chronograph is in amazing condition: The case is strong with just some very light scratches due to storage and retains its original blue film on the caseback. The dial is the main attraction here as it is very clean and the hands are still intact.

    The bracelet is very sharp and retains its original sticker on the clasp.

    The glass has a thin scratch but barely visible.

  • BRAND: Seiko
    MODEL: Speedtimer
    REFERENCE: 6139-7020
    DIAL: Original black dial
    CASE MATERIAL: Stainless Steel
    CASE DIMENSIONS: 41 x 44 mm diameter, 13mm Height, 19mm Lug Width
    CRYSTAL: Mineral glass
    CASE BACK: Screw-in Stainless Steel
    MOVEMENT: Cal.6139A (Self-Winding)
    Manufacturing date: May 1971
    Service History: Serviced, +4s/day
    Bracelet/Strap: Original Seiko Speedtimer JDM Bracelet XGA141

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