Seiko 5 7009-3140 Men’s Automatic Dress Vintage Watch, 1979

Seiko 5 1979 — First impression - Ref. 7009-3140

The Seiko 5 Ref. 7009-3140 from 1979 embodies the Japanese horological philosophy of combining accessible automatic engineering with enduring elegance. Its chocolate brown matte dial with golden baton indices gives this wristwatch a distinguished yet understated character. With a slim 36 mm stainless steel case and a dark leather strap, it represents a timeless piece of Seiko’s design heritage from the late 1970s. Fully serviced and preserved, this model offers both historical value and everyday reliability.

Seiko 5 - Chocolate Matte Dial

The dial is finished in a deep chocolate matte tone, accentuated by applied golden hour markers with slim luminous inlays. The Seiko 5 logo and “Seiko” inscription at 12 o’clock are also executed in gold, providing a harmonious contrast against the darker background. The day-date complication at 3 o’clock, with Sunday highlighted in red, ensures practical daily usability while maintaining balanced aesthetics.

Seiko 5 7009-3140 - Hands

The hands are baton-style, gold-toned with luminous inserts for legibility in dim light. The central seconds hand is slender and gold, sweeping across the dial with mechanical elegance. Together, these elements reinforce the refined simplicity that defines Seiko’s approach to design in this era.

Seiko 5 7009-3140 - Stainless Steel Case

The stainless steel case measures 36 mm in diameter with a lug-to-lug span of 42 mm, ensuring a comfortable fit on most wrists. Its design reflects the late 1970s with a square-tonneau outline softened by polished edges and brushed flat surfaces. The thin bezel highlights the expansive dial, while the compact proportions make it an ideal dress watch with vintage appeal.

Seiko 5 7009-3140 - Crown

The recessed crown at the 4 o’clock position, a signature of the Seiko 5 line, preserves the watch’s symmetrical profile. Small and discreet, it allows for day-date and time adjustments without disturbing the clean lines of the case design.

Seiko 5 Leather Strap

This watch is paired with a dark brown stitched leather strap, complementing the chocolate dial while offering a sophisticated dress appearance. While different from the original Seiko steel bracelet, the strap enhances its vintage elegance and ensures versatile wearability in formal and casual settings alike.

Seiko 5 1979 — Automatic Caliber 7009

Powering this model is the Seiko Caliber 7009, an automatic mechanical movement beating at 21,600 vibrations per hour (3 Hz). Renowned for its durability and ease of maintenance, this movement lacks manual winding and hacking features but is celebrated for its reliability and long service life. As part of Seiko’s late 1970s production, it reflects the brand’s dedication to precision timekeeping and accessible mechanical watchmaking during the quartz era.

Heritage of the Seiko 5 in the 1970s

The Seiko 5 collection, established in the 1960s, had become a global icon by the late 1970s. Offering automatic movement, day-date display, recessed crown, durable steel cases, and reliable bracelets, the five features defined its identity. The Ref. 7009-3140, with its chocolate brown matte dial and compact case, captures this heritage while reflecting the elegant dress watch styling of the era. It remains a desirable piece for collectors interested in Japanese horology heritage and vintage wristwatches of the late 20th century.

Seiko 5 1979 — Condition, Originality, Warranty

This Seiko 5 Ref. 7009-3140 is in used but fully operational condition, with all original components intact. It has been fully serviced, ensuring reliable performance of the automatic Caliber 7009. The watch is offered with a 12-month warranty and worldwide shipping, making it a trustworthy addition for collectors and enthusiasts of historic mechanical timepieces.

Browse more Seiko vintage watches like the 1979 Ref. 7009-3140 with chocolate matte dials or explore our curated men’s dress vintage watches featuring automatic calibers.