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Seiko 5 Sports Speedtimer 6139-7012





The 7012 Speedtimer chronograph is a versatile timepiece that can be worn for any occasion. It distinguishes itself from other models in the 6139 series with its slimmer case profile and a tonneau shape that is both comfortable and well-proportioned.


This particular watch, manufactured in July 1971, is in pristine condition. With a size of 41mm, it offers a noticeable presence on the wrist without being overpowering. The mid-case features a brushed finish, while the polished and beveled bezel creates a captivating contrast that directs attention to the dial. Speaking of the dial, it is flawlessly executed, showcasing a matte black surface with a textured finish and a thoughtfully balanced color layout.


The Speed Timer logo is positioned alongside the day (written in both Kanji and English) and date window. The date display is highlighted in a vibrant "SpeedTimer" orange color, which is also used for the 1/5 second track at the edge of the dial. The minute register is presented in a charcoal gray shade with a subtle sunburst effect, while a white block minute chapter enhances the overall legibility with a bold contrast.


Ships from Tokyo, Japan

Seiko 5 Sports Speedtimer 6139-7012

  • The chronograph is in very good condition: The case is strong with just some light scratches. The dial is the main attraction here as it is very clean and the hands are still intact.

    The case back has tool marks and scratches but all the engravings remain firm. There are no visible scratches on the glass.

    The bracelet is in very good condition and it is the correct one for this model and has few scratches and still retains its sharp edges.

  • BRAND: Seiko
    MODEL: Speedtimer 
    REFERENCE: 6139-7012
    DIAL: Original black dial
    CASE MATERIAL: Stainless Steel
    CASE DIMENSIONS: 40 x 43 mm, 19mm Lug Width, 19mm Height
    CRYSTAL: Mineral Crystal
    CASE BACK: Screw-in Stainless Steel
    MOVEMENT: Seiko Automatic Cal. 6139B
    Manufacturing date: July 1971
    Service History: Serviced, +8s/day
    Bracelet/Strap: Original and correct Seiko 5 Sports Bracelet XLA-071 on the links.

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