Vintage Seiko Tank Watch 7431-5210 — Gold-Plated, Green Leather (1988)
Only 1 available
Shipping from Dubai — taxes and customs duties are the buyer's responsibility outside the UAE
Lifetime authenticity guarantee
Movement guaranteed for 1 year
Free insured shipping
Photo taken on a 17.5 cm wrist
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Atelier Note
A 5.5mm gold-plated rectangle, a brushed champagne dial with gold-tone markers, hands with black inserts. A Seiko from 1988 on handmade green crocodile leather, delivered with its Atelier Victor invoice serving as a certificate.
A Seiko Tank 7431-5210 from 1988, gold-plated and with a champagne dial
This Seiko 7431-5210 dates from 1988. Its rectangular gold-plated case measures 27.5mm wide, 36mm lug-to-lug and only 5.5mm thick; its straight sides frame the dial directly.
The champagne dial, brushed vertically, features applied gold-tone baton markers, doubled at 12 o'clock, and a dotted minute track. The hour and minute hands, gold-tone with black inserts, stand out clearly against this background; the centre seconds is gold-tone. The Seiko Quartz signature sits below 12 o'clock.
The watch is powered by the Seiko 7431 quartz calibre. The original gold-tone crown is set into the right side, and the caseback is steel.
It is fitted with a handmade green crocodile leather strap, fastened by a gold-tone pin buckle, on a 19mm Lug width.
Three points to note
01
5.5mm thick — A gold-plated rectangle that slips under a cuff.
02
Brushed champagne dial — Applied gold-tone markers, hands with black inserts.
03
Green crocodile leather — A handmade strap with a gold-tone pin buckle.
Why choose a vintage Seiko Tank watch?
This Seiko Tank 7431-5210 combines a 5.5mm gold-plated rectangular case, a brushed champagne dial and a green crocodile leather strap. A dress watch from 1988, suitable for everyday wear as well as with a shirt.
Each piece offered by Atelier Victor is checked by our watchmakers before being put online: movement tested, case and dial examined. It is delivered with the Atelier Victor invoice serving as a certificate, a 1-year mechanical guarantee on the movement and a lifetime authenticity guarantee.
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Technical specifications
- Brand : Seiko
- Model : Tank gold-plated
- Reference : 7431-5210
- Estimated year : 1988
- Serial number : 8000••
- Origin : Japan
- Gender : Men's watch, women's watch (Unisex)
- Movement : Quartz, caliber Seiko 7431
- Functions: Hours, minutes, centre seconds
- Case: Gold-plated (steel back), rectangular shape
- Width: 27.5mm (29mm with the crown)
- Lug-to-lug: 36mm
- Thickness: 5.5mm
- Lug width: 19mm
- Crown: Gold-tone, original
- Dial: Brushed champagne, applied gold-tone baton markers, original
- Hands: Gold-tone baton hands with black insert, gold-tone centre seconds, original
- Crystal: Mineral (condition 7/10)
- Strap: Green crocodile leather, handmade, not original
- Buckle: Gold-tone pin buckle, not original
Condition and guarantee
- Overall condition: Good overall condition, original dial and hands, Crystal 7/10
- Water resistance: Not guaranteed (vintage watch)
- Authenticity: Lifetime guarantee
- Mechanics: Movement checked and functional, 1-year guarantee
- Included: Invoice Atelier Victor serving as a certificate of authenticity, protective case
- Not included: Original box and papers
Frequently asked questions
Why is it referred to as a Tank watch?
The term is used to refer to a watch with a rectangular case. Seiko did not market this reference under that name: it owes it to its shape, a gold-plated rectangle with straight sides.
How is this watch dated?
By its serial number, engraved on the caseback, 8000••. At Seiko, the first digit gives the year within the decade, here 8: the piece dates from 1988.
What maintenance does a quartz movement require?
A battery change about every two to three years, to be entrusted to a watchmaker in order to preserve the caseback gasket.
Is this piece suitable for a slim or larger wrist?
With a width of 27.5mm, 36mm Lug-to-lug and a thickness of 5.5mm, it suits wrists of around 14 to 18cm — a guide, never a rule: everyone wears what they like. It slips under a cuff.
How do delivery and payment work?
The piece is shipped with tracking and insurance by a trusted carrier, to a collection point or to your home depending on the destination. Delivery is free.
Mechanical warranty — 1 year
Each watch is inspected by our watchmakers before shipping. In case of a mechanism malfunction during the first year, we cover the repair.
Authenticity warranty — lifetime
If a watch turns out to be non-authentic, we will take it back and refund you in full. Without time limit.
What is not covered
- Exposure to water or humidity
- Shocks, impacts, or vibrations
- Consumable parts (strap, Crystal, crown, pushers)
- Battery replacement (quartz movements)
- Opening or disassembly of the watch by a third party
- Improper use
The accuracy of vintage watches varies according to the model, movement, and year of production. A request for accuracy improvement deemed within acceptable tolerances cannot be covered by the warranty.
Shipping fees
After-sales service is free. Shipping fees outside the United Arab Emirates remain the responsibility of the customer.
Authentication Process
Each watch is examined by our partner watchmakers before being offered for sale: verification of authenticity, checking the conformity of the components, identification of any modification or replacement of original parts.
If any element has been replaced during the life of the watch (dial, hands, crown, Crystal, strap), we systematically indicate it in the product sheet. You buy knowing the exact history of your piece.
Certificate of Authenticity
Your Atelier Victor invoice serves as a certificate of authenticity: it attests to the origin and conformity of the piece, and is covered by our lifetime authenticity guarantee — if a piece sold by Atelier Victor were found to be non-authentic, it would be fully refunded, with no time limit.
Free delivery
Delivery is free on all our pieces internationally. Dispatch within 48 to 72 business hours by DHL Express, Emirates Post, EMS or an equivalent carrier depending on the destination, delivery within 2 to 14 business days. Each shipment is insured and delivered against signature.
- Tracking number sent as soon as the shipment is dispatched
- For certain destinations, delivery may be made to a secure collection point in order to guarantee the integrity of the shipment
Collection in Dubai
In-person handover by appointment in Downtown Dubai. Make an appointment.
Taxes and customs
The shipping origin is indicated on each product page. If the delivery country differs from the shipping country, customs duties and taxes may apply upon receipt and are payable by the buyer. Customs inspections may in rare cases extend the delivery time.
For full details, please consult our shipping policy.
FINAL SALES
All sales are final: no return, exchange, or cancellation is accepted after order confirmation. Each piece is authenticated, inspected, and described in detail before being offered for sale.
BEFORE PURCHASE
Our advisors remain at your disposal for any questions and can send you additional photographs or videos upon simple request, by email or on WhatsApp.
NON-CONFORMING ITEM
In the exceptional case of an item that does not match its listing, please notify us within 72 hours: it will be eligible for a refund or an exchange. If the parcel shows damage upon delivery, it should be refused or its opening filmed continuously.
For full details, please consult our return policy.
A piece selected by Atelier Victor
Authenticated, checked, and photographed by us. As all sales are final, our team remains available 7 days a week on WhatsApp to answer your questions, share additional photos or a video of the piece in hand — so that your choice can be made with complete peace of mind.
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