Vintage Omega Seamaster Cosmic 166.023 — Grey Dial (1967)
Only 1 available
Payment by bank transfer: -3%
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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The automatic elegance of a 1960s Seamaster
This Omega Seamaster Cosmic from 1967 embodies the golden age of Omega watchmaking, when the brand offered robust and accessible dress watches, powered by exceptional in-house movements. Its sunburst grey dial captures the light in a subtle gradient, enhanced by applied indexes and Arabic numerals on the rehaut, with a date window at 3 o'clock. A sober and timeless dress watch, with a typically vintage charm.
The Seamaster is the oldest line still produced by Omega: launched in 1948 for the brand's centenary, it made water resistance its signature. The Cosmic sub-family, introduced in 1966, showed that the Seamaster could be much more than a simple diving watch — an elegant automatic for everyday wear. Its monocoque case (a single-piece case, known as an “Unishell”) makes it particularly resistant to water and dust; on the caseback appears the famous seahorse, the emblem of the collection.
It is powered by the Omega 565 caliber, an in-house automatic movement with 24 jewels, equipped with a stop-seconds function, quickset date, and an approximate 50-hour power reserve. Renowned for its reliability and precision, it is one of the most appreciated calibers from Omega's 1960s production. Our example has been serviced by our watchmakers and is running perfectly.
Mounted on its Omega rice-grain bracelet (ref. 513) in steel, with Buckle original Omega folding clasp, this piece will appeal to the vintage watch enthusiast seeking an authentic Omega, in Unisex format and with a strong character.
Three points to note:
- Omega 565 in-house automatic caliber, serviced, with quickset date and stop-seconds function.
- Case monocoque steel “Unishell” case and original Omega rice-grain bracelet.
- Original grey dial showing oxidation marks linked to age (see condition and photos) — the charm of an authentic, unaltered piece.
See our other vintage Omega watches → | See all our vintage Omega Seamaster watches →
Technical specifications
- Brand: Omega
- Model: Seamaster Cosmic, grey dial
- Reference: 166.023
- Estimated year: 1967
- Serial number: 252xxxxx (communicated to the buyer)
- Origin: Switzerland
- Gender: Men's and women's watch (Unisex)
- Movement: Automatic, Omega 565 caliber (24 jewels)
- Functions: Hours, minutes, center seconds, date
- Case: Monocoque steel, round shape
- Dimensions: 33mm (36mm with crown)
- Lug to lug: 36mm
- Thickness: 10.7mm (Crystal included)
- Lug width: 18mm
- Crown: Signed Omega, original
- Dial: Gris sunburst, original
- Hands: Steel (type baton), original
- Crystal: Unsigned Plexiglas (condition 9/10)
- Bracelet: Omega rice-grain steel bracelet (ref. 513), original (adjustable, length 17.5 cm)
- Buckle: Omega steel folding Buckle (ref. 1037), original
Condition and warranty
- Overall condition: Good overall condition for a piece of this age. Steel Case in good condition, original Omega bracelet. The dial shows signs of oxidation and slight pitting around the perimeter, visible in the photos — authentic traces of age, with no impact on function.
- Water resistance: Not guaranteed (vintage watch)
- Authenticity: Lifetime guarantee
- Movement: Serviced automatic movement, one-year warranty
- Included: Atelier Victor invoice, protective case
- Not included: Original box and papers
Frequently asked questions
What is the Omega Seamaster Cosmic?
The Seamaster Cosmic is a line produced by Omega from 1966, within the Seamaster collection (Omega's oldest lineage, born in 1948). Elegant and accessible, it proved that the Seamaster could be an everyday dress watch and no longer only a dive watch. Its one-piece case and hippocampus logo on the caseback remain hallmarks of the collection.
What is the Omega 565 caliber?
The 565 is an Omega in-house automatic movement from the 1960s, with 24 jewels, beating at 19,800 vibrations per hour, equipped with hacking seconds, quick-set date and approximately 50 hours of power reserve. Recognized for its precision and robustness, it is one of the most appreciated calibers among Omega collectors.
What is a one-piece case?
On this Cosmic, the case is made from a single piece (known as an « Unishell » or monocoque): it has no separate screw-down caseback, which improves resistance to water and dust. The movement is housed and removed from the front, after the Crystal is removed — a technical feature typical of certain Omega models of the era.
Can one obtain an Omega archive extract for this watch?
Yes. Omega offers an official archive extract service which, using the serial number, confirms the production date and original characteristics of the watch. Do not hesitate to contact us so we can assist you with the process.
Is this watch suitable for a man or a woman?
With its 33 mm case (excluding the crown), it is a Unisex-sized piece, elegant on the wrist of both a man and a woman. Its classic proportions and sunburst grey dial make it an ideal dress watch for formal wear.
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.
Return period
You have 14 days after receipt to return an item. It must be sent back in its original condition, with all accessories, boxes and documents provided.
Costs at your expense
- Return and import costs
- Actual initial shipping cost (regardless of any amount charged at checkout — free delivery only covers the shipment if the purchase is kept)
- Bank transaction fees (~5%)
To avoid transaction fees, please choose bank transfer.
In-person purchases
Items handed over in person during a private appointment cannot be returned, exchanged, or refunded.
For full details of the procedure, please consult our returns policy.
A piece selected by Atelier Victor
Authenticated, inspected, and photographed by us. 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.
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