Omega Seamaster 166.003 (1966)

Now available at auction from Second Vintage This beautiful 1966 Seamaster stands out through its exceptionally clean silver sunburst dial and crisp caseback medallion. Paired with its classic stainless steel beads-of-rice bracelet, it offers a highly cohesive and well-preserved example of Omega's celebrated mid-century design language. Brand: Omega Model: Seamaster Automatic Reference Number: 166.003 Serial Number: 23019276 Movement: Automatic Caliber 562 Dial: Silver sunburst with applied faceted baton indices and black inserts Case Size: 34 mm (excluding the crown) Case Material: Stainless steel Production Year: 1966 Condition: Excellent vintage condition. Timegrapher: -12-15s/day, performing remarkably well. Dial and Hands Presented in excellent preservation, the silver sunburst dial is exceptionally clean, showing minimal signs of aging or spotting. It features applied faceted baton indices with black inserts, an applied Omega logo, and a cleanly framed date window at the three o'clock position. The original steel dauphine hands carry matching black inserts and display light, age-appropriate patina, with light oxidation and minor dust visible under magnification. The sweep seconds hand remains in good condition, completing a highly legible and well-preserved display. Case and Crystal The 34 mm stainless steel case is in honest vintage condition with normal wear. It features a smooth polished steel bezel and faceted lugs, with edges that remain reasonably defined. The surfaces show light scratches and minor handling marks consistent with careful use over the decades. A knurled steel crown, signed with the Omega logo, sits at the three o'clock position. Turning the watch over reveals a crisp Seamaster hippocampus medallion on the caseback. The domed acrylic crystal is clear, with no significant scratches or crazing visible. Movement Inside beats the reliable Omega Caliber 562 automatic movement, featuring 24 jewels and the brand's characteristic copper-colored finish. The plates and bridges are clean with minimal signs of oxidation, while the rotor shows light wear, resulting in an overall excellent visual condition. Engravings confirm the caliber and the matching serial number. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. The timegrapher records a rate of -12-15s/day. Strap The watch is fitted with its original signed stainless steel beads-of-rice bracelet, secured by a signed Omega folding clasp. This classic and comfortable bracelet is in good wearable condition, showing normal wear and light scratches on the links and clasp. It accommodates a maximum wrist size of 18cm. Condition Excellent vintage condition. The dial is exceptionally clean and well-preserved, while the case retains reasonably defined edges and a crisp caseback medallion alongside honest surface wear. The original hands display light, age-appropriate patina, and the crystal remains clear. The movement is visually excellent and, supported by the timegrapher reading of -12-15s/day, is performing very strongly. Dimensions The case measures 34 mm in diameter (excluding the crown). Remarks This is a quintessential vintage Seamaster in excellent condition. The combination of the exceptionally clean sunburst dial, the crisp hippocampus caseback medallion, and the original beads-of-rice bracelet makes this an outstanding and highly wearable example of classic Omega design. History The Omega Seamaster reference 166.003 was produced between 1964 and 1970, representing a highly successful era of watchmaking for the brand. Housed in a classic 34 mm stainless steel case, this model offered a refined yet robust everyday aesthetic. Powered by the dependable Caliber 562 automatic movement, these watches have remained highly appreciated by enthusiasts for their enduring style, balanced proportions, and excellent mechanical reliability. 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-SXX-0052