Seiko 5 Automatic Ref. 6309-4080 - June 1977 NOS
The fact that a watch has been preserved unused for nearly half a century is a story in itself-one that deserves to be told before even discussing its technical specifications. With its distinctive case embodying the bold design character of the 1970s, its integrated-look steel bracelet, and its exceptional condition, the Seiko 5 Ref. 6309-4080 stands before us as a rare NOS (New Old Stock) example that is extremely difficult to find today.
**IMPORTANT NOTE: Since this item ships from within the European Union, you will not be liable for customs duties within the EU.**
The serial number 761839 on the case back indicates, according to Seiko’s dating system, that the watch was manufactured in June 1977. This era marked a time when the brand combined its reliable automatic movements with more daring case shapes. The model’s steel case-featuring a "TV-screen" shape with softened corners-and its geometric structure that flows seamlessly into the bracelet instantly evoke the design aesthetic of the 1970s.
One of the watch's most striking features is its light champagne-gray dial, enlivened by horizontal lines. This surface-which shifts in tone depending on the angle of the light-is complemented by gold-colored baton indices, slender hour and minute hands, a surrounding gold-toned minute track, and an applied Seiko 5 emblem. The framed day-date window at the 3 o'clock position adds practical daily functionality without disrupting the design's visual harmony. The code "6309-4138 R" and the Suwa symbol at the bottom of the dial are further details that reinforce the watch's authentic period identity.
Inside beats the Seiko Calibre 6309A, as documented in the accompanying photographs. Introduced in 1976, this 17-jewel automatic movement features a frequency of 21,600 vibrations per hour, a quick-set date function, and a bilingual day display. Belonging to Seiko’s renowned "63" family-celebrated for its durability-this movement combines engineering designed for daily use with a simple, reliable construction.
What makes this particular example truly special is its state of preservation. The factory finish of the case, its crisp lines, the bracelet edges, the signed Seiko clasp, and the dial and hands are all in exceptional condition. Beyond having been preserved without use, the watch comes with its presentation box and three spare bracelet links. Despite the passing years, it reveals its age almost exclusively through its design language rather than signs of wear.
Final Word
It is an extremely rare occurrence to find a Seiko 5-originally produced in 1977 to accompany daily life-that has reached the present day without ever having its own story of use begin. This 6309-4080 is not merely a characteristic automatic watch of its era; it is a true time capsule that preserves Seiko’s 1970s design and engineering ethos in a state virtually identical to when it was new.
The product shown here was manufactured in 1977.
PROFESSIONALLY FULLY SERVICED.
The movement was completely disassembled; every part was cleaned, lubricated, and precision-adjusted to ensure flawless operation. (Requires no maintenance for three years, provided it is not exposed to adverse conditions.)
Product Condition: Tested; all functions are fully operational.
