Omega Seamaster Cosmic 135017 (1960-1969)

Now available at auction from Second Vintage Offering a classic vintage Omega design, this Seamaster Cosmic commands attention with its distinctive tonneau-shaped case and pristine silver sunburst dial. Preserved with sharp geometry and exceptionally clean aesthetics, it presents a compelling opportunity to acquire a highly legible and striking mechanical timepiece from a celebrated era of Swiss watchmaking. Brand: Omega Model: Seamaster Cosmic Reference Number: 135017 - TOOL 107 Movement: Mechanical Dial: Silver sunburst with applied indices Case Size: 35 mm (excluding the crown) Case Material: Stainless steel Production Year: 1960s Condition: Excellent vintage condition. Timegrapher: -2s, performing remarkably well. Dial and Hands The dial is exceptionally clean and highly legible, featuring a brilliant silver sunburst finish that catches the light beautifully. Applied indices with black inserts provide excellent contrast alongside crisp, clear printed text, maintaining a sharp visual presence. The dial remains free of visible staining, moisture damage, or significant patina. The original stick hands, also featuring black inserts, show age-appropriate wear; specifically, visible oxidation and spotting are present on the metal surfaces under macro inspection. Case and Crystal The stainless steel tonneau-shaped one-piece case displays sharp and well-preserved geometry, emphasizing the distinct silhouette of the model. Its polished finish exhibits only light surface scratches consistent with careful wear over the decades. The caseback features clear engravings, notably the Seamaster seahorse logo and the 135017 - TOOL 107 reference. The watch is fitted with a signed Omega crown in good condition, retaining defined knurling for easy winding. A domed acrylic crystal protects the dial, showing minor surface scratches and dust. Movement Housed securely within the one-piece case is a mechanical Omega movement. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. The timegrapher results show a highly precise rate of -2s, confirming its strong current performance. Strap The watch is fitted with a classic black leather strap featuring white contrast stitching. The strap appears new or lightly used, providing a comfortable fit and complementing the vintage aesthetic of the dial and case. Condition Excellent vintage condition. The case retains sharp geometry with only light surface scratches indicative of careful wear, while the caseback engravings remain distinct and fully readable. The silver sunburst dial is remarkably clean and well-preserved, though the original hands display visible oxidation under close inspection. The domed acrylic crystal presents minor surface scratches. Supported by the timegrapher reading of -2s, the movement is performing very strongly. Dimensions The case measures 35 mm (excluding the crown). Remarks This Seamaster Cosmic is defined by its pristine dial and distinctive case shape. Its strong mechanical performance and crisp caseback engravings make it a highly wearable and attractive vintage Omega, perfect for daily enjoyment or dedicated collecting. History Introduced in the late 1960s, the Seamaster Cosmic represented a bold stylistic shift for Omega. Moving away from traditional round profiles, the Cosmic line embraced the design language of the era with distinctive tonneau and cushion-shaped cases. The use of a front-loading, one-piece case was a hallmark of the Cosmic family, engineered to provide a robust housing for the movement. Today, the Seamaster Cosmic is appreciated as a quintessential example of late-century Omega design, offering enduring mechanical reliability and undeniable visual character. / Second Vintage SKU: OME-SXX-0017