Vintage Seiko 7820-5130 Stainless Steel — Tank Circle Dial (1980s)
Only 1 available
Shipping from Europe — taxes and customs duties are the buyer's responsibility outside the EU
Lifetime authenticity guarantee
Serviced movement & 1 year warranty
International shipping
Photo taken on a 17.5 cm wrist
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Seiko Tank steel: the Japanese dress watch with a black dial and navy blue circle motif
This Seiko watch is a dress watch for both men and women, designed in the classic vocabulary of the shaped watch. Its rectangular case in steel, with sharp angles and polished flanks, cultivates a sober, timeless elegance. The case measures 28mm (30mm with the crown) for a Lug-to-lug of 34mm and a thickness of just 6.3mm. A slim, graphic piece, made to slip under a cuff.
The black dial is the star feature of the piece. Its surface is entirely covered with a grid-like pattern of small navy blue circles, a textured lattice that catches the light in thousands of points and shifts the dial from deep black to midnight blue depending on the angle. The applied steel baton indexes set the rhythm around the perimeter, while the small Seiko vintage medallion sits below the center. Two steel baton hands are all that is needed: no seconds hand, no date, just the essentials on this beautifully worked background.
Inside beats the caliber Seiko 7820, a high-end analog quartz movement with two hands, produced in Japan in the 1980s. Its slim construction is precisely what makes the watch's 6.3mm profile possible. The movement of this example has been checked by our watchmaker and the battery replaced before shipping. Seiko did not publish any precision specification for this caliber: we therefore make no numerical claim.
On the wrist, the piece behaves like a de ville jewel. The steel and black dial with navy blue circles create a dark, refined ensemble, here highlighted by a genuine crocodile leather black strap that extends the sobriety of the whole. This strap is not original; it is mounted on a buckle Buckle. The Lug width measuring 22mm firmly anchors the watch on the wrist.
Three points to note
- The black background dial with navy blue circle motif is the strength of the piece: a dial treatment characteristic of careful Seiko dress watches, revealed in the light.
- No original precision specification has been published by Seiko for this caliber. We therefore make no claim of any value in seconds per month.
- The Crystal and brushed steel bear visible micro-scratches from use in raking light, consistent with the age of the piece.
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Technical specifications
- Brand: Seiko
- Model: Rectangular dress watch
- Reference: 7820-5130
- Estimated year: 1980s
- Origin: Japan
- Gender: Men's and women's watch (Unisex)
- Movement: Japanese quartz, caliber Seiko 7820
- Functions: Hours, minutes
- Case: Steel (steel back), rectangular shape
- Dimensions: 28mm (30mm with the crown)
- Lug to lug: 34mm
- Thickness: 6.3mm
- Lug width: 22mm
- Crown : Steel, fluted, original
- Dial : Black with a navy blue checked circle pattern, applied steel baton hour markers, medallion Seiko, original
- Hands : Steel batons (hours, minutes), original
- Crystal : Mineral, very good condition
- Bracelet : Genuine black crocodile leather, non-original
- Buckle : Buckle, non-original
Condition and warranty
- Overall condition : Beautiful state of preservation. Clean dial, intact circle pattern. The Crystal and brushed steel show visible micro-scratches from use in raking light, consistent with the age of the piece.
- Water resistance : Not guaranteed (vintage watch)
- Authenticity : Lifetime guarantee
- Mechanical : Checked quartz movement, new battery, 1-year warranty
- Included : Atelier Victor invoice, protective case
- Not included : Original box and papers
Frequently asked questions
Is this rectangular Seiko a Cartier ?
No. This is an authentic Seiko, signed on the dial and engraved with reference 7820-5130. The rectangular steel case with its elaborately finished dial belongs to the common vocabulary of dress watches from the 1980s, adopted by many Japanese and Swiss houses. This piece claims nothing other than what it is, and the authenticity of its brand is guaranteed for life by Atelier Victor.
What is the circle dial on this Seiko ?
It is a black dial covered with an embossed mesh of small navy blue circles, which animates the entire surface. In the light, the pattern catches the reflections and shifts the tone from deep black to midnight blue. It is a dial treatment characteristic of refined Japanese dress watches, and an original detail specific to this piece.
Is the Seiko caliber 7820 reliable ?
Yes. The 7820 is a high-end analog quartz movement, with two hands, produced in Japan in the 1980s. Its simple, slim construction makes it durable, and its maintenance in practice is limited to battery replacement. The movement in this example has been checked by our watchmaker and comes with a 1-year warranty.
Is this Seiko 7820-5130 water-resistant ?
No. Water resistance is never guaranteed on a vintage watch: the original gaskets have aged and the case back pressure is no longer what it was on day one. Avoid the shower, the pool and the sea. However, simple contact with rainwater does not pose any difficulty.
Is a 28mm rectangular case suitable for which wrist ?
On a rectangular watch, it is the Lug-to-lug that matters: 34mm here, which places the piece on wrists of about 15 to 18cm. This is the classic dress-watch format: discreet on a man's wrist, perfectly proportioned on a woman's wrist. Its 6.3mm thickness allows it to slip under a cuff.
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.
We accept several payment methods:
- Bank card (Visa, Mastercard — American Express not accepted)
- Bank transfer (AED, EUR, USD)
- Cryptocurrency (USDT, USDC)
- PayPal
Other currencies accepted upon request. Exchange fees of approximately 3% may apply.
A 3% discount is granted for any payment by bank transfer starting from €1,000.
Does the strap not suit you? Add the strap of your choice to your order: we will fit it to your watch before shipment, at no fitting charge.
International Shipping
Shipped within 48 to 72 business hours by DHL Express or an equivalent carrier depending on the destination. Delivery in 2 to 6 business days. Each shipment is insured and delivered against signature.
- Free delivery from €1,000 of purchase, as well as on the Jewelry Atelier Victor
- 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
Pickup in Dubai
Hand delivery by appointment in Downtown, Dubai. Make an appointment.
Taxes and Customs
The shipping origin is indicated on each product sheet. If the delivery country differs from the shipping country, customs duties and taxes may apply upon receipt, at the buyer's expense. In exceptional situations, customs checks may extend the delivery time, regardless of our wishes and those of the carrier.
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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