Seiko 5 6309-5500 Men’s Automatic Dress Vintage Watch

Vintage Seiko 5 Dress Vintage Watch from 1979, men’s automatic Cal. 6309 with a striking black and gold dial and tonneau stainless steel case, fully serviced and ready for sale.

Seiko 5 1979 — First impression - 6309-5500

The 1979 Seiko 5 Ref. 6309-5500 captures the essence of late-70s Japanese horology heritage, offering a distinctive tonneau-shaped stainless steel case and a rich black dial accented with a bold gold chapter ring. This design blends elegance with a slightly sporty edge, making it a versatile choice for both collectors and those seeking a refined daily wearer. Fully serviced and preserving all original components, this watch demonstrates Seiko’s commitment to precision timekeeping and durable craftsmanship.

Seiko 5 - Black and Gold Dial

The dial features a deep black matte base contrasted by a wide gold-toned chapter ring with applied baton markers. The SEIKO and “5” logo sit proudly at 12 o’clock, while “AUTOMATIC” appears above 6 o’clock with the shield emblem beneath. A framed day-date window at 3 o’clock adds both functionality and balance to the design.

Seiko 5 6309-5500 - Hands

Gold-tone pencil-style hour and minute hands provide excellent legibility against the dark background, complemented by a slim gold central seconds hand. The minimalistic yet elegant hand design ensures the dial remains the focal point.

Seiko 5 6309-5500 - Tonneau Stainless Steel Case

The stainless steel tonneau case measures 37 mm in diameter and 42 mm lug-to-lug, with brushed surfaces on the top and polished flanks for a balanced finish. Its integrated lug design contributes to a streamlined profile, ensuring comfort on the wrist.

Seiko 5 6309-5500 - Crown

The recessed crown at the 4 o’clock position is discreet yet practical, aiding in the watch’s sleek profile while offering easy access for time and date adjustments.

Seiko 5 Stainless Steel Bracelet

This example is fitted with a stainless steel multi-link bracelet in a jubilee style, providing both comfort and a vintage aesthetic that complements the case design. The bracelet integrates seamlessly with the case for a cohesive look.

Movement: Automatic Cal. 6309

Powered by Seiko’s in-house Cal. 6309 automatic movement, this watch delivers reliable timekeeping with a day-date complication. Known for its durability and low-maintenance design, the 6309 embodies the robust engineering of late-70s Japanese watchmaking.

Heritage of the Seiko 5 in the Late 1970s

By the late 1970s, the Seiko 5 line had firmly established itself as a benchmark for accessible mechanical watches. The Ref. 6309-5500 exemplifies the era’s move towards bolder case shapes and contrasting dial designs, while maintaining the core Seiko 5 promise: automatic movement, day-date display, water resistance, recessed crown, and durable case and bracelet.

Seiko 5 — Condition, Originality, and Trust

This 1979 Seiko 5 Ref. 6309-5500 is in excellent condition, fully serviced, and fully operational, with all original components preserved. It comes with a 12-month warranty and worldwide shipping. For collectors seeking a distinctive late-70s Japanese automatic, this is a standout choice. Explore more Seiko vintage watches with bold dial designs from the 1970s or discover our selection of automatic vintage watches with heritage calibers.

Technical Details