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Seiko 5 Automatic Black Dial 6309-8800 — wrist-works

About This Watch

A refined and understated vintage Seiko 5 Automatic from the mid-1980s — a period widely regarded as a golden era for Seiko dress watch design. Reference 6309-8800, powered by the respected Calibre 6309 with 17 jewels, this watch combines everyday practicality with timeless elegance in a slim 36mm stainless steel case. The deep black dial with clean baton hour markers and contrasting white hands creates a crisp, highly legible look that remains as wearable today as when it left the factory. The Seiko 5 star emblem sits proudly on the dial, and the day and date functions display clearly at 3 o’clock. The exhibition caseback reveals the 6309 movement at work. Presented on a stainless steel bracelet in good condition. Worn for several hours prior to listing to confirm smooth, reliable running throughout — a clean and honest vintage dress watch.

Specifications

Brand	Seiko
Model	Seiko 5 Automatic
Reference	6309-8800 A5
Movement	Automatic — Calibre 6309, 17 Jewels
Power Reserve	Approx. 47 hours
Era	Mid-1980s
Dial Colour	Black with baton hour markers
Hands	White — high contrast against black dial
Functions	Hours, Minutes, Seconds, Day, Date
Day / Date	3 o’clock position
Caseback	Exhibition — movement visible
Case Material	Stainless steel
Case Diameter	36mm (excluding crown)
Lug to Lug	42mm
Water Resistance	As marked on dial — vintage, not recommended for swimming
Bracelet	Stainless steel — good condition, light surface wear

Condition

Good overall vintage condition with minor signs of wear consistent with its age
Fully operational — day, date and all functions working correctly
Black dial clean and crisp — baton markers intact, no notable damage or fading
White hands bright and clean — strong contrast against the black dial
Exhibition caseback intact and clear — 6309 movement visible and running
Stainless steel bracelet in good condition — light surface wear only
Please refer carefully to all photographs, which form an important part of this description

Please Note

This is a vintage timepiece from the mid-1980s. While the watch is currently running and functioning, long-term timekeeping accuracy cannot be guaranteed without servicing. Some regulation may be needed. Minor age-related signs are to be expected.

The Calibre 6309 is non-hacking and non-hand-winding by design — the seconds hand will not stop when the crown is pulled, and the watch cannot be wound manually via the crown. This is completely normal and expected for this movement.

We make every effort to describe our items with the utmost accuracy, but vintage watches may exhibit unique characteristics. Customer satisfaction is our highest priority — if you encounter any issues, please contact us before leaving feedback.

Please review all photos carefully as they form an important part of the description.

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Seiko 5 Automatic — Black Dial