Omega - Seamaster Cosmic - No reserve price - 166.023 - Men - 1967

Now available at auction from Second Vintage This distinguished 1967 Omega Seamaster Cosmic is a quintessential example of mid-century Swiss design and engineering. Renowned for its innovative "unibody" monocoque case construction, which eliminated the traditional removable caseback to improve water resistance and structural integrity, the Cosmic line represents a bold era in Omega’s history. This particular example features the highly desirable "crosshair" dial configuration, adding a layer of technical sophistication to its aesthetic. Powered by the legendary copper-finished Caliber 552, this timepiece marries the robust reliability of the Seamaster lineage with an elegant dress-watch profile, making it an excellent choice for the discerning collector. Brand: Omega Model: Seamaster Cosmic Reference Number: 166.023 Serial Number: 25589884 Movement: Omega Caliber 552 Automatic Dial: Silver crosshair with applied baton indices Case Size: 33 mm (excluding the crown) Case Material: Stainless steel Production Year: 1967 Condition: Attractive vintage condition. The watch presents well with honest signs of wear, including evident dial patina and aged case surfaces, and is running within healthy vintage tolerances. Dial and Hands The silver sunburst dial is the highlight of this timepiece, featuring the sought-after "crosshair" design that divides the face into four precise quadrants. Patina developed over the decades adds a sense of character and vintage authenticity, with light spotting and aging visible on the dial surface. Applied baton indices feature black onyx-style inserts, providing strong contrast and legibility. The original tritium lume plots have aged to a warm, creamy tone, matching the luminous material on the stick hands. The text remains clear, and the applied Omega logo at 12 o’clock adds depth. Case and Crystal The stainless steel case showcases the Cosmic's signature monocoque (unishell) design, where access to the movement is through the front. The case maintains attractive geometry with visible sharp bevels, accompanied by light surface marks and scratches consistent with regular use. The rear features the recognizable Seamaster Hippocampus (seahorse) engraving and the "Waterproof" and "Tool 105" designations, all still pronounced. The signed Omega crown is present. The acrylic crystal displays typical surface scratches and light hazing—expected for a well-worn vintage piece. Movement At the heart of this Cosmic beats the respected Omega Caliber 552, an automatic movement with 24 jewels celebrated for its reliability. The serial number 25589884 pins production precisely to 1967. The movement is visually clean and runs within vintage tolerances, with recent timegrapher readings showing -11 to -13 seconds per day, which indicates a healthy movement and offering reliable vintage performance. Strap Fitted is a nice vintage-style black leather strap with white contrast stitching near the lugs. The supple leather and subtle grain texture, paired with a simple polished steel buckle, complement the monochromatic dial and case aesthetic. The strap is in very good condition and ready for everyday wear. Condition This timepiece is in strong vintage condition. The case and acrylic crystal exhibit expected surface marks and scratches from years of honest wear, and the dial has developed organic patina with some visible aging. The unibody case remains solid with crisp engravings to the rear, indicating preservation of original lines and minimal polishing over its life. Dimensions The case measures 33 mm in diameter excluding the crown—a classic mid-century size that wears larger due to the unibody build and dial-forward proportions. The watch sits comfortably and low on the wrist thanks to the slim Caliber 552 movement. Remarks Reference 166.023 stands out among vintage Omega offerings due to its innovative case design and variety of dial configurations. The "crosshair" dial variant offered here is especially collectible for its technical style. The presence of "Tool 105" engraving on the caseback is a distinctive technical touch, referencing the special tool required for servicing the front-loading case. This example captures the design spirit and technological advancement of the late 1960s. History Omega introduced the Seamaster line in 1948 to commemorate the brand's centenary, drawing from its history of water-resistant timepieces developed for the British military. The Seamaster Cosmic was launched in the late 1960s, directly inspired by the era’s fascination with space exploration and engineered as a robust, modern, and water-resistant evolution of earlier dress Seamasters. The monocoque case was a forward-thinking solution designed to extend durability by minimizing potential entry points for moisture and dust, ensuring longevity and the ability to enjoy this piece today. / Second Vintage SKU: OME-OSC-0006