Omega Seamaster Cosmic, 35mm, Calibre 565 Automatic, 166.026
$1,314.00 USD
The OMEGA Seamaster Cosmic 166.026 is a distinctive vintage Seamaster from the late 1960s and early 1970s, reflecting the changing design language of the period through its compact proportions and integrated, tonneau-shaped case. Rather than following the conventional round-case formula, the Cosmic developed a character of its own within the broader Seamaster family.
Its approximately 35mm stainless steel case uses a front-loading monocoque construction, a notable feature of this generation. The compact dimensions are classically vintage, while the broader case shape gives the watch more wrist presence than its diameter alone suggests. A date display at 3 o'clock adds useful everyday functionality.
Inside is the respected OMEGA Calibre 565, a 24-jewel automatic movement widely used by OMEGA during this period. Particularly notable is its quick-set date mechanism, operated through the crown, making the Calibre 565 an important and practical movement within OMEGA's vintage automatic lineage.
Specifications
- Brand: OMEGA
- Collection: Seamaster Cosmic
- Reference: 166.026
- Movement: OMEGA Calibre 565 Automatic
- Case Material: Stainless Steel
- Case Size: Approximately 35mm
- Case Design: Tonneau-Style Monocoque / Front-Loading Construction
- Crystal: Plexiglass
- Bracelet: Stainless Steel Bracelet
- Wrist Size: Fits up to 18.5cm
- Water Resistance: Not Water Resistant Due to Age
- Functions: Hours, Minutes, Seconds, Date
- Accessories: None
- Condition: Traces of usage, scratches can be seen but generally in good condition
- Availability: Global Concierge Sourcing Service
Key Features
- Vintage Seamaster Cosmic Design — The distinctive tonneau-shaped case captures OMEGA's move toward more integrated and unconventional watch design during the late 1960s and early 1970s.
- OMEGA Calibre 565 — A well-regarded 24-jewel automatic movement from one of OMEGA's important vintage movement families, complete with a practical quick-set date function.
- Monocoque Case Construction — The front-loading single-piece case architecture is a defining technical and design characteristic of the Seamaster Cosmic generation.
- Compact Vintage Proportions — At approximately 35mm, the 166.026 delivers traditional vintage sizing while its broader case geometry provides greater visual presence on the wrist.
- Period OMEGA Character — The combination of mechanical automatic movement, date functionality and distinctive case architecture makes the 166.026 an interesting alternative to more conventional vintage Seamaster references.
The OMEGA Seamaster Cosmic 166.026 represents an interesting period in OMEGA's design history, combining distinctive late-1960s styling with the proven Calibre 565 automatic movement. Its monocoque construction, compact proportions and unmistakably vintage character make it an appealing choice for enthusiasts looking for something different within the extensive Seamaster lineage.
Style is Timeless.
In-Stock (New Zealand)
Dispatched the next business day via signature-required courier. Delivery is typically 1–2 business days within New Zealand. Tracking details are provided upon dispatch.
In-Stock (Australia)
Timepieces dispatched from New Zealand to Australia are typically delivered within approximately one week via secure international courier. Tracking details are provided upon dispatch.
Global Concierge
Timepieces sourced through our Global Concierge Service are typically delivered within 2–3 weeks. You'll receive updates throughout the sourcing and shipping process, with tracking provided once your watch has been dispatched.
DPD: Duties and taxes are included in the purchase price, with no additional import charges payable upon delivery.
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Once your watch arrives in New Zealand, it is independently inspected, tested, and authenticated before returning to Timeless Luxury for final preparation and secure dispatch via signature-required courier, ensuring it reaches you safely and ready to enjoy.
Timeless Luxury provides a 6 months warranty which covers mechanical faults. Read more.
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Frequently asked questions
Every watch is independently inspected, tested, and authenticated in New Zealand before dispatch. We guarantee authenticity and source every timepiece through trusted overseas suppliers, including partners who are members of the International Anti-Counterfeiting Coalition (IACC).
In-stock ships now; globally sourced watches typically arrive in 2–3 weeks. Tracked and insured across NZ & Australia.
A 6-month warranty covering mechanical faults.
Yes, a 7-day grace period so you can be completely satisfied.
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6 month warranty against fault *Terms apply
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We only sell watches that meet our high expectations of quality and condition.
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