Omega Seamaster Octagon 166.0258 70s — Vintage Pre-Owned Watch

Integrated sports watch from the seventies — authentic geometric design

The Omega Seamaster Automatic Octagon 166.0258 embodies the geometric spirit and bold design of the 1970s, with its characteristic octagonal case and original integrated steel bracelet. This rare reference from the Swiss manufacture combines mechanical reliability with a resolutely vintage aesthetic, offering collectors a piece of undeniable horological heritage. Entirely original, it retains its period authenticity with a subtle patina that testifies to its careful use.

📌 Unique, pre-owned item • Open for bidding

A distinctive and now rare Omega Seamaster Automatic Octagon, with a design reminiscent of the 70s and entirely original execution – a vintage Swiss Seamaster with a strong character, perfect for enthusiasts of integrated sports watches from the iconic seventies era. This reference 166.0258 combines a striking octagonal case with an elegant minimalist dial and the original integrated Omega steel bracelet.

The Omega Seamaster collection was renowned in the 70s for its combination of modern design, reliable mechanical movements, and high-quality finishing. This Octagon version now belongs to the rarer variants of the vintage Seamaster line and is immediately distinguished by its geometric design and clean, integrated bracelet.

The silver/cream dial features slim black hour markers, black hands, and a convenient day-date display at 3 o'clock. The subtle contrast between the light dial and the dark elements gives the watch an elegant and understated look. The original Omega steel integrated bracelet with an Omega-signed clasp perfectly complements the case design and reinforces its distinctive 1970s character.

Inside is a reliable Omega automatic movement with a day-date function. The copper-colored Omega caliber is in good condition and is visible in the detailed photos. The case, crown, case back, bracelet, and clasp all bear Omega signatures, confirming that this is a completely original example.

The watch is in very good overall condition considering its age. The case shows slight signs of wear consistent with normal, careful vintage use. The original dial is in good condition with a light patina appropriate for its age. The plexiglass crystal appears clear and clean with minimal signs of wear. The original Omega bracelet is also in good condition with slight stretching consistent with vintage use.

A rare and elegant Seamaster Octagon which, by its original condition, integrated design and characteristic case, constitutes a very attractive collector's item.

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Basic information

Brand: Omega
Model: Seamaster Automatic Octagon
Reference number: 166.0258
Movement: Automatic
Year of production: 70s
Warranty: 3 months on the movement

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Important details

Gender: Male
Movement: Automatic
Dial color: Silver / cream
Housing Material: Steel
Strap Material: Steel
Year of production: 70s

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Components

Bracelet / Bracelet:
Strap color: Silver
Clasp: Folding clasp
Clasp material: Steel

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Case:

Case diameter: approx. 36 mm
Height: Unknown
Waterproofing: Vintage / untested
Glass: Plexiglas
Figures: Index
Bezel Material: Steel

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Caliber:

Caliber/Movement: Omega Automatic
Number of rubies: 17 rubies

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Functions:

Day and date display

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other:

Central hand, Swiss Made, Integrated bracelet

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State by component

Case: Slight signs of use
Dial: Good vintage condition with a slight patina
Glasses: Slight signs of use
Glass: Very good condition
Background: Slight signs of use
Bracelet: Good condition with slight stretching consistent with age

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Condition

Very good (slight signs of normal vintage use)

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Parts and modifications

No, entirely original, including original Omega bracelet, clasp, crown and Omega automatic movement.