Seiko - Tank - No reserve price - Unisex - 1980-1989

Seiko Tank Quartz – Vintage Rectangular Dress Watch – Gold Plated – 1980s–1990s

Seiko Quartz – Gold-Tone Dial – Mineral Crystal – Two-Tone Expansion Bracelet

An elegant vintage Seiko Tank-style quartz wristwatch, featuring a distinctive rectangular case inspired by the refined geometric dress-watch aesthetic that became especially popular during the late 20th century.

The watch combines a gold-tone dial and bezel with contrasting silver-tone case details, creating a sophisticated two-tone appearance. Its elongated rectangular proportions, clipped corners and minimalist dial give the piece a strong architectural character.
The dial is signed SEIKO QUARTZ and features a particularly clean design, with stylised Roman numerals at 12 and 6 o’clock and elegant black-and-gold hands. The restrained composition gives the watch a refined, almost jewellery-like presence on the wrist.

The caseback markings identify the watch as Seiko 6580-5000, providing an important reference for the model.

Technical Details
Brand: Seiko
Model / Reference: 6530-5000
Style: Tank-style rectangular dress watch
Movement: Seiko quartz
Case material: Gold plated / two-tone construction
Case size: Approx. 25 × 36 mm
Case back: Stainless steel
Glass: Mineral crystal
Dial: Gold-tone / champagne dial
Functions: Hours, minutes
Bracelet: Two-tone metal expansion bracelet
Wrist size: Approx. 21–22 cm due to expandable construction
Water resistance: Not tested for water.
Box: Delivered with generic presentation box.
Condition Grade: B

Condition Report
This vintage Seiko is presented in Grade B condition, with visible signs of age and normal use.
The case shows scratches, small marks and wear to the gold-tone finish, particularly around the bezel and case edges. The stainless-steel caseback also shows light surface marks consistent with previous wear.

The gold-tone dial remains attractive overall, although the crystal shows visible scratches and signs of use, which can be clearly seen in the photographs.

The two-tone expansion bracelet shows normal surface wear and remains an important part of the watch's characteristic period appearance.
The crown shows visible wear to its finish.
The watch has not been tested for water resistance, therefore water resistance is not guaranteed.

Please study all photos carefully, as they are part of the description and show the actual condition of the item.

Story & Heritage
Founded in Japan in 1881, Seiko became one of the most important names in modern watchmaking and played a decisive role in the development and popularisation of quartz wristwatches.

During the late 20th century, Seiko produced an extraordinary variety of quartz watches, ranging from highly technical models to refined dress watches designed around slim cases and elegant geometric forms.

This example belongs to the latter tradition. Its elongated Tank-inspired case, minimalist gold-tone dial and two-tone construction reflect the sophisticated dress-watch aesthetic associated with the 1980s and early 1990s.
Unlike a conventional round watch, the rectangular architecture gives this Seiko a more distinctive presence. The Roman-style details at 12 and 6 reinforce its elegant character, while the quartz movement represents the precision and practicality for which Seiko became internationally recognised.

A stylish vintage Seiko for collectors who appreciate rectangular watches, Japanese quartz design and the elegant watch aesthetic of the late 20th century.

Internal Reference Number - SOA-20