Now available at auction from Second Vintage A quintessential 1960s manual-wind Seamaster. This classic 1966 Omega Seamaster 600 configuration features a distinctively aged dial and a highly clean Omega Caliber 611 mechanical movement, offering a compelling blend of honest visual character and excellent mechanical preservation. Brand: Omega Model: Seamaster Reference Number: 136.011 Serial Number: 24045902 Movement: Manual-wind Omega Caliber 611, 17 jewels, adjusted two positions Dial: Heavy reddish spotting, applied indices, and date display Case Size: 34 mm (excluding the crown) Case Material: Stainless Steel Production Year: 1966 Condition: Good vintage condition. Movement serviced on 21 July 2026. Timegrapher: +7s+10s/day, performing remarkably well. Dial and Hands The dial presents a highly specific aesthetic, characterized by heavy, even reddish spotting and degradation across the entire surface. Despite this heavy patina, the dial printing, including the "T SWISS MADE T" designation at the bottom, remains entirely legible. The applied indices and the applied Omega logo remain firmly intact. The watch is fitted with stick hands featuring black inserts, which display minor oxidation and visible debris on their surfaces consistent with the overall aged character of the dial. Case and Crystal The stainless steel case displays honest wear, presenting moderate surface scratches and handling marks throughout. The smooth integrated bezel shows general surface scratches consistent with the rest of the case. The lugs retain decent shape but exhibit some nicks and softened edges from years of use. The watch features an Omega signed crown, which shows some wear to the knurling. The domed acrylic crystal remains in good condition, showing minor surface scratches but no major cracks or chips. Movement Inside the case is the manual-wind Omega Caliber 611, engraved with "OMEGA WATCH Co", "SWISS", "ADJUSTED TWO (2) POSITIONS", and "SEVENTEEN 17 JEWELS", along with the matching serial number. The copper-colored plating is bright and clean, showing no obvious signs of corrosion, oxidation, or damage, and the screw heads appear in good condition. Recording +7s+10s/day on the timegrapher. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. The movement was serviced on 21 July 2026. Strap The watch is paired with a black leather strap featuring a crocodile pattern and white contrast stitching. The strap appears unworn or very lightly used. Condition Good vintage condition. The movement was serviced on 21 July 2026 and, supported by the recorded timegrapher result, is performing very strongly. The case shows moderate scratches, handling marks, and softened lug edges indicative of honest wear. The dial exhibits heavy, even reddish spotting and degradation, providing an uncompromisingly aged vintage aesthetic, while the hands show minor oxidation. The movement is exceptionally clean and visually well-preserved. Dimensions The case size is 34 mm, and this measurement excludes the crown. Remarks This Seamaster 600 stands out for its heavily spotted dial, contrasting sharply with the exceptionally clean condition of the Caliber 611 movement inside. The reliable manual-wind caliber and classic mid-century proportions make it an engaging prospect for collectors who appreciate strong mechanical performance paired with a deeply aged visual presence. History The Omega Seamaster line was introduced in 1948 to celebrate the brand's 100th anniversary, evolving from the robust, reliable watches supplied to the British military during the Second World War. By the 1960s, the Seamaster had diversified into a wide array of models, from professional dive watches to refined everyday timepieces. The Seamaster 600 series, introduced in the mid-1960s, became a popular choice for its classic styling and the reliable performance of Omega's 600-series manual-wind calibers. Caliber 611, featuring a date function, is highly regarded among collectors for its copper-toned finish, precise engineering, and enduring mechanical longevity. 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-OSX-0067