Seiko 5 Sports Speed-Timer “Pulsimeter” Ref. 7017-8000 from July 1971

SEIKO vintage mechanical watch
MADE IN JAPAN

“Seiko” (精工) is a Japanese word meaning “precision,” “exquisite workmanship,” or “refined craftsmanship.”
It comes from the characters:

• 精 (sei) – fine, precise, refined

• 工 (ko) – craft, workmanship

Originally, Seiko’s watchmaking division was called Seikosha (精工舎), meaning “House of Precision.”
In 1924 the company shortened the name to Seiko, keeping the core meaning.

So the brand name literally ties directly to the idea of precision engineering—which is exactly what the company wanted to be known for in its watches.

🕰️The Seiko 5 Sports Legacy: Precision Meets Durability

When Seiko introduced the “Seiko 5” in 1963, it wasn’t just a model—it was a promise. The line was built around five core attributes that redefined what an everyday mechanical watch should be. By 1968, the Seiko 5 Sports sub-brand took that foundation and turned up the volume, adding specialized tool-watch features like rotating bezels, hardened crystals, and higher water resistance for a new generation of enthusiasts.

Every Seiko 5, including this 1971 Speed-Timer, is defined by these 5 Core Pillars:

• Automatic Winding: No batteries required; the watch is powered entirely by the movement of your wrist.
• Day-Date Display: Integrated into a single window for instant legibility.
• Water Resistance: Built to survive the “Sports” lifestyle, from rain to the occasional splash.
• Recessed Crown: Often tucked away at 4 o’clock (or streamlined at 3 o’clock for chronographs) to prevent snagging and protect the stem.
• Durable Case & Bracelet: Engineered with high-grade stainless steel to withstand the rigors of daily wear.

Why the “Sports” Suffix Matters
While the standard Seiko 5 was the perfect “city watch,” the Sports line was developed by the Daini Seikosha factory to push the limits of Japanese horology. This specific reference, the Speed-Timer, was the pinnacle of that effort.
Unlike international models, the JDM (Japanese Domestic Market) “Speed-Timer” versions featured high-complication movements like the 7017A, providing a professional-grade flyback chronograph in a case thin enough to slide under a cuff. It represents the moment Seiko moved from being a reliable manufacturer to a global leader in technical watchmaking.

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DESCRIPTION

Step into the “Golden Era” of Japanese horology with this rare JDM (Japanese Domestic Market) exclusive. Produced by the legendary Daini Seikosha factory in July 1971, this isn’t your standard vintage Seiko 5. It is a sophisticated racing-style chronograph with a medical twist, featuring a rare Flyback complication that allows for instantaneous timing resets.
The deep matte blue dial is framed by a specialized Pulsimeter scale, originally designed for medical professionals to calculate heart rates—a unique aesthetic that sets it apart from the more common tachymeter bezels of the 70s.

Technical Specifications

Condition Report

• Case: Preserved in honest, unpolished condition. The original factory brushing on the lugs remains sharp and distinct, showing only light surface wear consistent with age.
• Dial & Hands: An exceptional 10/10. The matte blue dial is flawless with no spotting or “dial rot.” The orange sweep hand remains vibrant and hasn’t faded to yellow.
• Movement: The 7017A caliber is clean and running strong. The flyback function is crisp, and the chronograph resets perfectly to vertical zero.
• Bracelet: A rare find – the watch comes on its original XAA 531 tapered bracelet, which was sized down but retains its vintage charm.

Collector’s Note
The 7017 series was Seiko’s answer to the demand for a thinner, more wearable automatic chronograph. While the 6139 “Pogue” gets the spotlight, the 7017 is often favored by serious collectors for its sleeker profile and the technically superior flyback function, which was quite rare for 1971.

Watch went through a complete service by a professional watch tech and keeps good time.

Comes complete with original steel bracelet*.

(*)Note: Stock bracelets are often shortened by previous owners and may not fit you(see bracelet size in the product images). We recommend adding a new Seiko lug width matched leather strap with your order.

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We guarantee that the item in this ad looks and works as advertised and offer money back guarantee on this.

Seiko Group Corporation (セイコーグループ株式会社, Seikō Gurūpu kabushiki gaisha), commonly known as Seiko, is a Japanese maker of watches, clocks, electronic devices, and semiconductors. Founded in 1881 by Kintarō Hattori in Tokyo, Seiko introduced the world’s first commercial quartz wristwatch in 1969.

Seiko is widely known for its wristwatches. Seiko and Rolex are the only two watch companies considered to be vertically integrated. Seiko is able to design and develop all the components of a watch, as well as assemble, adjust, inspect and ship them in-house. Seiko’s mechanical watches consist of approximately 200 parts, and the company has the technology and production facilities to design and manufacture all of these parts internally.

Seiko offers one of the widest ranges of watch technologies in the world—quartz, kinetic, solar, mechanical, and Spring Drive—spanning everything from affordable everyday pieces to six-figure haute horlogerie. Over the decades it has launched multiple global brands, including Lorus, Pulsar, and Alba, while elevating its prestige through innovations like Spring Drive, which helped push Seiko into higher-end territory. In the 2010s, Grand Seiko and Credor were separated into fully independent luxury brands, while Seiko’s own global lineup now includes Grand Seiko, King Seiko, Prospex, Astron, Presage, and Seiko 5 Sports, with Credor remaining primarily Japan-focused.

Among Seiko’s key lines, Seiko 5 (born in 1963) is the gateway mechanical series known for durability and value; Lord Matic defined 1970s style with faceted crystals and colorful dials; Astron remains Seiko’s flagship GPS-solar tech line; Presage focuses on traditional mechanical craftsmanship with enamel and urushi dials; and Prospex delivers professional-grade dive, field, and pilot watches often embraced by enthusiasts. At the top end, Grand Seiko emphasizes precision, Zaratsu polished design, and movements like Spring Drive, while King Seiko—revived in the 2020s—brings back sharp, elegant 1960s styling with modern calibres.

Finally, Credor represents Seiko’s pinnacle of artisanal watchmaking, producing low-volume pieces in precious metals and showcasing Japanese decorative arts and haute complications from the Micro Artist Studio. Beyond watches, Seiko has also produced various electronic devices and, historically, jewelry and eyewear—though those divisions have since shifted to other companies.