Vintage Seiko Steel 4120-9010 — Midnight Blue Dial (1976)
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 quartz vintage: a stainless steel watch with a midnight blue dial
This vintage Seiko watch is immediately appealing thanks to its superb midnight blue dial, housed in an elegant round stainless steel case, slim and understated. Produced by Seiko in 1976, it is among the brand's first compact quartz watches. Understated and dressy, it can be worn just as easily on a man's wrist as on a woman's. A vintage watch with timeless charm, ideal for everyday wear as well as evening occasions.
The midnight blue dial is the key asset of this Seiko: a deep, subtly graduated sunburst tone that catches the light with elegance. Applied silver baton hour markers and a fine railroad minute track ensure legibility, while the « Seiko Quartz » signature and the brand emblem at 6 o'clock complete the ensemble. Three slender silver hands — hours, minutes and seconds — glide across this remarkably restrained dial.
This Seiko watch is powered by the caliber 4120, a compact quartz movement launched by the Suwa factory in the mid-1970s. It is one of the brand's first generations of mass-produced quartz, a direct heir to the Astron of 1969 — the world's very first quartz watch. Remarkably slim for its era, this caliber offers the precision and simplicity of quartz: a simple battery powers it for more than a year, with no mechanical servicing required.
With its 33.5mm case and slim profile, this vintage watch can be worn just as easily on a man's wrist as on a woman's — a true Unisex watch. The original dial is in very fine condition and the Crystal crystal is in good condition (rated 8/10, with some signs of wear). It is fitted on a genuine black crocodile leather strap, not original, with a stainless steel Buckle buckle.
Three points to note
- Elegant vintage Seiko watch, round stainless steel case, graduated midnight blue dial (1976).
- Seiko caliber 4120 (Suwa factory), one of the brand's first compact quartz movements, heir to the Astron.
- Unisex watch (for men and women); original dial in very fine condition, Crystal 8/10 (noted).
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Technical specifications
- Brand: Seiko
- Model: Round quartz (blue dial)
- Reference: 4120-9010
- Estimated year: 1976
- Origin: Japan
- Gender: Men's and women's watch (Unisex)
- Movement: Japanese quartz, Seiko caliber 4120 (Suwa factory)
- Functions: Hours, minutes, seconds
- Case: Stainless steel (steel caseback), round shape
- Dimensions: 33.5mm wide (34.5mm with the crown)
- Lug to lug: 38mm
- Thickness: 8.2mm (Crystal included)
- Lug width: 18mm
- Crown: Steel, original
- Dial: Midnight blue, applied silver baton hour markers, railroad minute track, signature « Seiko Quartz », emblem Seiko at 6 o'clock, original
- Hands: Steel baton hour markers (hours, minutes, seconds hand), original
- Crystal : Mineral, in very good condition (8/10)
- Bracelet: Genuine black crocodile leather, not original
- Buckle : Steel pin buckle, not original
Condition and warranty
- Overall condition: Very fine state of preservation. Original dial in very good condition; Crystal mineral crystal in good condition (8/10, some signs of wear).
- Water resistance: Not guaranteed (vintage watch)
- Authenticity: Lifetime guarantee
- Movement: Checked quartz movement, one-year warranty
- Included: Atelier Victor invoice, protective case
- Not included: Original box and papers
Frequently asked questions
Is this Seiko watch vintage?
Yes, fully so. Equipped with the Seiko 4120 calibre and dated 1976, it is well beyond the thirty-year threshold generally used for the term “vintage.” It is an authentic vintage Seiko watch, a witness to the early days of quartz at Seiko.
What is special about the 4120 calibre?
The 4120 is one of the first compact quartz movements produced on a large scale by Seiko, from 1975 onward, at the Suwa factory. It descends directly from the 1969 Astron, the world’s first quartz watch. Remarkably slim for its era, it remains renowned for its reliability.
Is the dial really blue?
Yes. The dial features a deep midnight blue, with a subtle sunburst finish, shifting from light blue to dark blue depending on the light. It is one of the major aesthetic strengths of this watch, in perfect harmony with its steel case.
Is this Seiko watch suitable for a man or a woman?
It is a women’s watch. Its 33.5 mm round case suits both a masculine and a feminine wrist. Its blue dial and dress-watch proportions make it a versatile vintage watch, for both men and women, from everyday wear to more formal occasions.
What is the international shipping timeframe?
Dispatch within 48 hours, international delivery within 3 to 5 days, insurance included.
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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