Omega Seamaster Cosmic 166035 (1970-1979)

Now available at auction from Second Vintage This classic vintage Seamaster Cosmic commands attention with its highly attractive silver textured sparkle dial and practical day and date complications. Housed in a distinctive tonneau monocoque case, it delivers a strong mid-century aesthetic backed by impressive mechanical performance. Brand: Omega Model: Seamaster Cosmic Reference Number: 166035 Movement: Automatic Dial: Silver textured sparkle finish with day and date Case Size: 35mm (excluding the crown) Case Material: Stainless steel Production Year: 1970s Condition: Good vintage condition. Timegrapher: +4+6s/day, performing remarkably well. Dial and Hands The dial presents an exceptionally clean textured silver sparkle finish, creating a dynamic visual presence. It features applied indices with black inserts and intact luminous plots, complemented by crisp printing throughout. At three o'clock, an elongated rectangular aperture elegantly displays the clean, sharp text of the day and date complications. The stick hands, also detailed with black inserts and luminous material, display visible oxidation and degradation on their metal surfaces and lume, adding authentic aged character to the display. Case and Crystal The stainless steel case features a distinctive tonneau geometry, characterized by a single-piece, front-loading monocoque design with an integrated front rather than a separate bezel. The surfaces transition smoothly between a brushed front and polished flanks. It exhibits honest vintage wear, with light to moderate scratches and handling marks consistent with its age. The caseback engravings remain clearly legible. The watch retains its signed Omega crown, showing light wear on its knurled edges. A domed acrylic crystal protects the dial, displaying light surface scratches and minor wear visible in reflections. Movement This Seamaster Cosmic is powered by the automatic Omega caliber 752, a day-date movement featuring 24 jewels, a quickset date function, and an operating frequency of 19,800 vibrations per hour. The timegrapher records a rate of +4+6s/day. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. Strap The watch is fitted with a period correct stainless steel mesh bracelet that complements the vintage aesthetic. The clasp shows light desk diving marks and bears no clear brand signature on its exterior. The bracelet accommodates a maximum wrist size of 18cm. Condition Good vintage condition. The dial is exceptionally well-preserved and clean, while the hands show visible oxidation and degradation. The monocoque case and domed acrylic crystal display light to moderate scratches and handling marks consistent with its era. The period correct mesh bracelet remains in highly wearable shape with minor desk diving marks on the clasp. Supported by the timegrapher reading of +4+6s/day, the movement is performing very strongly. Dimensions The case measures 35mm (excluding the crown). Remarks This Omega Seamaster Cosmic offers a highly attractive silver sparkle dial housed within a distinctive monocoque case. The reliable caliber 752 movement and practical day-date display make this a compelling and highly wearable vintage timepiece. History The Omega Seamaster Cosmic reference 166.035 was introduced in 1967 and produced into the early 1970s, representing a period of bold design experimentation for the brand. Its defining characteristic is the single-piece, front-loading monocoque case, a technical choice that eliminated the traditional caseback. Powered by the reliable 700-series calibers, these models provided practical day and date complications within an elegant, streamlined tonneau profile, securing the Cosmic as a distinctive and enduring chapter in the Seamaster lineage. Payment and Shipping Payment must be completed within 1–3 days after purchase. Your watch will be professionally and securely packaged, then shipped with tracking and insurance for your peace of mind. We use fast express shipping, with typical delivery within 1–4 business days, depending on the destination. Please note that vintage watches may show minor signs of wear, aging, or imperfections, which are considered normal for watches of this age. We kindly ask you to review all photos carefully before bidding. We photograph each watch from multiple angles to provide the most accurate representation possible, and the photos form an important part of the description. The timegrapher assessment if provided is seen as an indication of the movement’s condition under fully wound testing conditions. As with all vintage watches, results may vary in daily use. If you have any concerns regarding functionality or defects after delivery, please contact us within 3 days of receiving the watch so we can assist you. As with all used watches, water resistance is not guaranteed. If you have any questions, feel free to contact us after the auction ends. / Second Vintage SKU: OME-SCX-0009