






Seiko 5 6309-5820 Men’s Automatic Dress Vintage Watch 1982
Seiko Seiko 5 Ref. 6309-5820 (1982), automatic Cal. 6309. 35.0 × 40.0 mm. Two-tone silver and anthracite; case stainless steel. Fully serviced, 12 months warranty.
Seiko 5 1982 — First impression - 6309-5820
The Seiko 5 Ref. 6309-5820 from 1982 represents a refined expression of Japanese horology during the early 1980s. With its elegant tonneau-shaped case in stainless steel, gilt-accented two-tone dial, and reliable Caliber 6309 automatic movement, this wristwatch is both functional and collectible. As part of the iconic Seiko 5 family, it delivers the brand’s hallmark values: automatic winding, day-date complication, water resistance, recessed crown, and durable construction.
Seiko 5 - Two-Tone Gilt Dial
The dial is a distinctive combination of light silver in the center and a darker anthracite outer ring, elegantly contrasted with gilt indexes and chapter ring. Applied rectangular hour markers and dauphine-style hands with white inlay create a timeless balance of readability and sophistication.
Seiko 5 6309-5820 - Hands
This model features dauphine hour and minute hands in gold tone, enhanced with white inlay for legibility. The central seconds hand, also gold, sweeps smoothly across the dial, complementing the gilt accents and creating visual harmony.
Seiko 5 6309-5820 - Tonneau Stainless Steel Case
The stainless steel case measures 35 mm in diameter and approximately 40 mm lug-to-lug. Its tonneau-shaped design with curved lugs ensures a comfortable fit on the wrist. The polished finish reinforces its dress watch character while retaining Seiko’s robust construction typical of the 1980s.
Seiko 5 6309-5820 - Crown
The recessed crown at 4 o’clock is a hallmark of Seiko 5 design. Its discreet placement emphasizes the smooth case lines while ensuring practical adjustment of the day-date complication and timekeeping.
Seiko 5 Stainless Steel Bracelet
The watch is paired with a stainless steel bracelet composed of brushed outer links and polished central sections, preserving the vintage aesthetic and ensuring both durability and comfort.
Seiko 5 6309-5820 — Automatic Caliber 6309
Powering this model is the Seiko Caliber 6309, a Japanese automatic movement with 21 jewels and a beat rate of 21,600 vibrations per hour (3 Hz). Renowned for its robustness and reliability, the 6309 played an important role in Seiko’s mechanical watchmaking legacy during the late 1970s and 1980s. It offers dependable accuracy and requires minimal maintenance, making it highly valued among collectors.
Heritage of the Seiko 5 in the Early 1980s
The Seiko 5 line, introduced in the 1960s, became a symbol of accessible and durable mechanical watchmaking. By the early 1980s, references like the 6309-5820 combined modern styling with the brand’s technical innovations. Its gilt-accented dial and tonneau case reflect Seiko’s dedication to blending precision with design flair. Collectors recognize these pieces as representative of Japanese horology’s rise to global prominence.
Seiko 5 — Condition, Originality, and Warranty
This Seiko 5 Ref. 6309-5820 remains in excellent vintage condition with all original components preserved. The watch has been fully serviced, is fully operational, and comes with a 12-month warranty. Worldwide shipping is available, making it a secure choice for collectors seeking an authentic vintage Seiko with historical value.
Technical Details
| Brand | Seiko |
| Model | Seiko 5 |
| Reference | 6309-5820 |
| Condition | Used |
| Gender | Men’s |
| Caliber | 6309 |
| Category | Dress Vintage Watch |
| Production Year | 1982 |
| Dial Color | Two-tone silver and anthracite |
| Case Diameter | 35.0 mm |
| Lug to Lug | 40.0 mm |
| Case Material | Stainless Steel |
| Movement Type | Automatic |
| Fully Serviced | Yes |
| Fully Operational | Yes |
| Original Watch Components | Yes |
| Warranty | 12 Months |
Discover more in our Seiko vintage watches collection including rare 1980s models and explore our curated selection of dress vintage watches with gilt dials and automatic movements.
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FAQ: Seiko 5 6309-5820 Men’s Automatic Dress Vintage Watch 1982
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Which movement caliber is inside this Seiko?
The exact Seiko caliber is listed under technical specifications.
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Is this Seiko suitable for daily use?
Yes, if handled responsibly, serviced Seiko watches are fully suitable for regular wear.
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Are the watches on your website authentic?
Yes, every watch we offer is 100% authentic and thoroughly inspected before listing.
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Are the product photos showing the actual watch?
Yes, all photos on our website show the exact watch you will receive.
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Where was this Seiko manufactured?
Seiko is a Japanese brand; production for lines like 7009/7S26 was in Japan and other Asian facilities. This model is not Swiss-made.





