Seiko - SEIKO Quartz - No Reserve Price - 7431-5280 - Unisex - 1985
09
days
12
hours
21
minutes
56
seconds
Starting bid
€ 1
No reserve price
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Selected by Masayuki Nakai
Over 16 years buying and selling 1990s and 2000s watches with expert knowledge.
Estimate € 210 - € 260
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Seiko SEIKO Quartz reference 7431-5280, from the 1980s (1985), with a quartz movement.
AI-assisted summary
Description from the seller
Title
Seiko Quartz 7431-5280 – Vintage 1985 Gold-Tone Rectangular Dress Watch – Textured Gold Dial – Integrated Bracelet – Japan
⸻
Description
Vintage Seiko Quartz reference 7431-5280, a slim rectangular gold-tone dress watch with a striking textured gold dial and integrated bracelet.
The case back is signed “SEIKO – BASE METAL – ST. STEEL BACK – 7431-5280 RO – JAPAN K – 590442.”
Seiko serial numbers use the first digit for the production year within the decade and the second digit for the month. Together with the 7431 quartz series, which was produced in the 1980s, the serial 590442 indicates that this watch was produced in September 1985 in Japan.
The minimalist applied baton markers, three-hand layout and fully gold-tone dial create a clean, monochrome look that is very typical of high-end 1980s dress watches. The integrated metal bracelet completes the sleek, jewellery-like appearance on the wrist.
The watch is running (quartz) at the time of listing. Long-term accuracy has not been tested; as with all vintage quartz watches, future battery changes and routine servicing may be required.
⸻
Condition
Please study all photos carefully; they are part of the description.
Dial
• Textured gold dial with applied gold baton hour markers
• “SEIKO QUARTZ” printing sharp and legible
• Overall very good vintage condition with only minor ageing visible under magnification
Hands
• Gold-tone hands in good condition
• Light surface ageing only
Crystal
• Light scratches and small marks from normal wear, no major chips or cracks visible
Case
• Rectangular gold-tone case in base metal with faceted sides
• Noticeable scratches, small dings and wear to the gold-tone plating on edges and corners, consistent with a nearly 40-year-old watch
• Presents well on the wrist but shows honest vintage wear up close
Case back
• Stainless steel back marked 7431-5280 RO and JAPAN K 590442
• Part of the original oval Seiko sticker still present, partially worn away
• Scratches from use and opening
Crown
• Gold-tone crown, unsigned
• Functions correctly when setting the time
Bracelet
• Integrated Seiko metal bracelet: gold-tone top surfaces, stainless steel underside and clasp
• Clasp signed “SEIKO – BASE METAL TOP – STAINLESS STEEL BACK – JAPAN G”
• Light stretch, scratches and wear to the gold-tone sections; still fully functional
• Folding clasp closes securely
• Sized for a larger wrist; see wrist-sizer photo for reference
Movement
• Seiko quartz calibre 7431
• Running at the time of description
• Service history unknown
Overall this is a good vintage condition Seiko quartz dress watch with visible but honest signs of wear and a very attractive monochrome gold aesthetic.
⸻
Approximate size
(Measurements taken by hand; small variations are possible.)
• Case width (excluding crown): approx. 26mm
• Case length (lug-to-lug): approx. 34 mm
• Thickness: approx. 7 mm
• Bracelet width at case: approx. 20 mm
• Inner circumference: suitable for wrists of about 17–20 cm (see wrist-sizer photo)
⸻
Why this watch is special
This Seiko 7431-5280 captures the quintessential 1980s Japanese dress watch style:
• A fully gold-tone, textured dial and case that gives a luxurious, almost jewellery-like presence
• A slim quartz movement that allows a very low profile under a shirt cuff
• An integrated bracelet design, visually extending the case for a clean, modernist look
For collectors, it offers a genuine 1985 Japanese-made Seiko with a distinctive dial and original Seiko bracelet—an appealing alternative to more common round dress watches. For daily wear, it combines vintage charm with the practicality of a reliable quartz movement.
⸻
Shipping and taxes
The watch will be safely packed and shipped via DHL or Japan Post.
Estimated delivery time is approximately 1–2 weeks, depending on destination and customs.
Import duties, taxes and handling charges are not included in the item price or shipping cost and are the buyer’s responsibility. These fees may be collected by the carrier or your local customs office.
Please check all images carefully before bidding or purchasing.
We make every effort to describe our items accurately, but colours may appear slightly different depending on your screen and device settings.
Thank you very much for your bid.
Seiko
quartz
vintage
1980s
1985
Japan
dress
gold
goldtone
rectangular
tank
textured
dial
integrated
bracelet
Title
Seiko Quartz 7431-5280 – Vintage 1985 Gold-Tone Rectangular Dress Watch – Textured Gold Dial – Integrated Bracelet – Japan
⸻
Description
Vintage Seiko Quartz reference 7431-5280, a slim rectangular gold-tone dress watch with a striking textured gold dial and integrated bracelet.
The case back is signed “SEIKO – BASE METAL – ST. STEEL BACK – 7431-5280 RO – JAPAN K – 590442.”
Seiko serial numbers use the first digit for the production year within the decade and the second digit for the month. Together with the 7431 quartz series, which was produced in the 1980s, the serial 590442 indicates that this watch was produced in September 1985 in Japan.
The minimalist applied baton markers, three-hand layout and fully gold-tone dial create a clean, monochrome look that is very typical of high-end 1980s dress watches. The integrated metal bracelet completes the sleek, jewellery-like appearance on the wrist.
The watch is running (quartz) at the time of listing. Long-term accuracy has not been tested; as with all vintage quartz watches, future battery changes and routine servicing may be required.
⸻
Condition
Please study all photos carefully; they are part of the description.
Dial
• Textured gold dial with applied gold baton hour markers
• “SEIKO QUARTZ” printing sharp and legible
• Overall very good vintage condition with only minor ageing visible under magnification
Hands
• Gold-tone hands in good condition
• Light surface ageing only
Crystal
• Light scratches and small marks from normal wear, no major chips or cracks visible
Case
• Rectangular gold-tone case in base metal with faceted sides
• Noticeable scratches, small dings and wear to the gold-tone plating on edges and corners, consistent with a nearly 40-year-old watch
• Presents well on the wrist but shows honest vintage wear up close
Case back
• Stainless steel back marked 7431-5280 RO and JAPAN K 590442
• Part of the original oval Seiko sticker still present, partially worn away
• Scratches from use and opening
Crown
• Gold-tone crown, unsigned
• Functions correctly when setting the time
Bracelet
• Integrated Seiko metal bracelet: gold-tone top surfaces, stainless steel underside and clasp
• Clasp signed “SEIKO – BASE METAL TOP – STAINLESS STEEL BACK – JAPAN G”
• Light stretch, scratches and wear to the gold-tone sections; still fully functional
• Folding clasp closes securely
• Sized for a larger wrist; see wrist-sizer photo for reference
Movement
• Seiko quartz calibre 7431
• Running at the time of description
• Service history unknown
Overall this is a good vintage condition Seiko quartz dress watch with visible but honest signs of wear and a very attractive monochrome gold aesthetic.
⸻
Approximate size
(Measurements taken by hand; small variations are possible.)
• Case width (excluding crown): approx. 26mm
• Case length (lug-to-lug): approx. 34 mm
• Thickness: approx. 7 mm
• Bracelet width at case: approx. 20 mm
• Inner circumference: suitable for wrists of about 17–20 cm (see wrist-sizer photo)
⸻
Why this watch is special
This Seiko 7431-5280 captures the quintessential 1980s Japanese dress watch style:
• A fully gold-tone, textured dial and case that gives a luxurious, almost jewellery-like presence
• A slim quartz movement that allows a very low profile under a shirt cuff
• An integrated bracelet design, visually extending the case for a clean, modernist look
For collectors, it offers a genuine 1985 Japanese-made Seiko with a distinctive dial and original Seiko bracelet—an appealing alternative to more common round dress watches. For daily wear, it combines vintage charm with the practicality of a reliable quartz movement.
⸻
Shipping and taxes
The watch will be safely packed and shipped via DHL or Japan Post.
Estimated delivery time is approximately 1–2 weeks, depending on destination and customs.
Import duties, taxes and handling charges are not included in the item price or shipping cost and are the buyer’s responsibility. These fees may be collected by the carrier or your local customs office.
Please check all images carefully before bidding or purchasing.
We make every effort to describe our items accurately, but colours may appear slightly different depending on your screen and device settings.
Thank you very much for your bid.
Seiko
quartz
vintage
1980s
1985
Japan
dress
gold
goldtone
rectangular
tank
textured
dial
integrated
bracelet
Details
Brand
Seiko
Gender
Unisex
Model
SEIKO Quartz
Reference Number
7431-5280
Band material
Steel
Shipped Insured
No
Period
1980-1989
Repainted dial
No
Movement
Quartz
Case material
Stainless steel
Original box included
No
Original papers included
No
Case diameter
26 mm
Original warranty included
No
Condition
Good - visible signs of wear
Year
1985
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