Description
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.
About the Seiko Pendant Watch Line
🕰️ Seiko Pendant Watches — jewelry that tells time
By the late 1960s Seiko was making far more than wristwatches. Alongside its dress and sports lines, the company produced a range of pendant watches — small manual-wind timepieces cased as jewelry and worn on a neck chain rather than the wrist. They were aimed largely at women, sold as an elegant alternative to a wristwatch: a watch you wore as a necklace.
The formula was simple and refined. A slim hand-wound movement — here the 17-jewel Diashock caliber — sat in a compact round case, with the crown and hanging bail combined at the top so the whole piece hung cleanly from its chain. Freed from the need to house an automatic rotor or a wrist-side crown, the cases could be kept thin and the backs plain, leaving the front free for decoration. Seiko finished many of these pendants with intricately engine-turned or diamond-cut cases — sunburst and barleycorn patterns cut directly into the metal — so that the watch read first as a piece of jewelry and second as an instrument.
Most were plated rather than solid precious metal — “ASGP” (All Seiko Gold Plated) for the yellow versions, white-gold-plated for the silver-toned ones — which kept them affordable while giving the bright, formal look the style called for. They were popular gifts through the 1970s and, being small and easily set aside, complete surviving examples on their original chains are far less common today than the wristwatches of the same era.
About This Watch
This is the white-gold-plated version of Seiko’s pendant watch, reference 21-7160. Its serial number, 111213, dates it to January 1971. The case-back is engraved “SEIKO · 111213 · WGP BACK ST. STEEL · 21-7160” — WGP meaning the case is white-gold-plated, over a stainless-steel back.
The dial is a warm silver, carrying an applied Seiko logo, slim applied baton markers and dauphine hands, with the “DIASHOCK 17J” signature to the right of centre. What sets the piece apart is the case: the lower half of the front and the wide surrounding frame are cut with a fine diamond-pattern (barleycorn) guilloché that catches the light from every angle, framing the clean dial like a piece of jewelry. It hangs from a matching silver-tone chain.
Inside is Seiko’s 17-jewel, hand-wound Diashock movement — no battery and no rotor, just a watch you wind by hand. It comes complete with its chain, exactly as pictured.
Technical Specifications
- Brand: Seiko
- Line: Pendant / Necklace Watch
- Reference Number: 21-7160
- Movement: Mechanical, manual wind (hand-wound); 17-jewel Diashock
- Serial Number: 111213
- Production Date: January 1971
- Case Material: White-gold-plated (WGP) case, stainless-steel back
- Case Diameter: approx. 33 mm (≈ 40 mm including the bail)
- Dial: Silver, applied baton markers, dauphine hands, “DIASHOCK 17J”
- Crystal: Acrylic
- Case-back: Stainless steel, engraved “SEIKO · 111213 · WGP BACK ST. STEEL · 21-7160”
- Chain: Matching silver-tone chain included (as pictured)
- Country of Manufacture: Japan
Condition Report
This example presents beautifully. The silver dial is clean and bright, with the applied Seiko logo and baton markers intact and the dauphine hands straight and unblemished. The diamond-cut case shows crisp, well-preserved barleycorn guilloché, and the white-gold plating is strong across the visible surfaces with no obvious brassing. The stainless-steel case-back is clear and its markings are fully legible. The matching silver-tone chain is in good order with a sound, working clasp. A clean, well-kept example of Seiko’s WGP pendant watch.
Watch went through a recent service by a professional watch technician and keeps good time.
Comes complete with a matching silver-tone chain (as pictured).
This watch ships from 🇺🇦Ukraine with tracking number
Why Collectors Want This Watch Today
Vintage Seiko pendant watches are quietly collectible. They were made in far smaller numbers than the wristwatches of the same years, and because they were delicate jewelry pieces, most were lost, broken, or long ago separated from their chains. A complete, freshly serviced example like this one — the white-gold-plated 21-7160 with its intricate diamond-cut case and its matching chain intact — is exactly the kind of piece that is genuinely hard to find in wearable condition. It is a real mechanical Seiko you wind by hand and wear as a necklace: equal parts watch and jewelry, and a distinctive alternative to yet another wristwatch on a strap.
Modes of payment:
- PayPal
- Credit Cards (VISA, MasterCard, American Express, Discover)
We guarantee the item you receive looks and works exactly as advertised — or your money back.
About the watch factory
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.
