Offered in this auction by Second Vintage
This 1960s Omega Seamaster Cosmic is defined by its pristine silver crosshair dial and distinctive tonneau-shaped geometry. Retaining its original signed brick-link bracelet, the watch offers a highly cohesive and well-preserved visual presence that embodies the space-age design language of the era.
Brand: Omega
Model: Seamaster Cosmic
Reference Number: 166026 - TOOL 107
Movement: Automatic
Dial: Silver with vertical brushing and printed crosshair motif
Case Size: 35 mm (excluding the crown)
Case Material: Stainless Steel
Production Year: 1960s
Condition: Excellent vintage condition. Timegrapher: +3+6s/day, performing remarkably well.
Dial and Hands
The silver dial features a striking vertical brushing complemented by a printed crosshair motif. Applied faceted indices with black inserts correspond perfectly with the applied Omega logo, creating a highly legible and pristine display. The dial surface remains exceptionally clean, showing no visible spotting or moisture damage. The stick hands carry matching black inserts, exhibiting only very minor dust or light oxidation visible strictly under macro magnification. The entire dial layout remains beautifully preserved.
Case and Crystal
The tonneau-shaped stainless steel case displays honest vintage wear while retaining well-preserved geometry, featuring brushed top surfaces that transition smoothly into polished flanks. Light scratches and handling marks consistent with normal wear are present throughout. The crisp caseback engravings remain sharply defined, prominently displaying the Seahorse medallion alongside the 166026 reference number. A knurled crown, clearly signed with the Omega logo, sits tightly against the case side. The domed acrylic crystal is clear, showing no major scratches, crazing, or cracks.
Movement
The watch is powered by an automatic mechanical movement. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. The timegrapher records a result of +3+6s/day.
Strap
The watch is fitted with its original signed steel brick-link style bracelet, completing the integrated look of the Cosmic line. The clasp features a prominent raised Omega logo, and the endlinks are correctly stamped 026. The bracelet displays moderate surface scratches and wear consistent with age, remaining in solid condition. The maximum wrist fit is 18 cm.
Condition
Excellent vintage condition. The stainless steel case and original brick-link bracelet show honest wear with light, age-appropriate scratches, while preserving their original lines. The silver crosshair dial is remarkably clean and free of significant flaws. Supported by the recorded timegrapher result, the automatic movement is running very strongly and accurately.
Dimensions
The case measures 35 mm in diameter (excluding the crown).
Remarks
This Seamaster Cosmic stands out through its exceptionally clean crosshair dial and the presence of its original 026 brick-link bracelet. The crisp Seahorse caseback engraving further confirms the careful preservation of this 1960s timepiece, making it a highly attractive example of the model.
History
Omega introduced the Seamaster Cosmic line in the late 1960s, embracing the forward-looking aesthetic of the era with distinctive tonneau and cushion-shaped cases. Many Cosmic models utilized a front-loading unibody case design, often denoted by the Tool 107 engraving on the caseback, which required removing the crystal to access the movement. This design choice allowed for sleek, uninterrupted case lines that defined the model family. Today, the Seamaster Cosmic is appreciated for its unique geometry and definitive late-century styling.
/ Second Vintage
SKU: OME-OAS-0020












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Omega - Seamaster Cosmic - No reserve price - 166026 - Men - 1960-1969
Omega
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