Offered in this auction by Second Vintage This captivating mid-century Hamilton Automatic represents a fascinating intersection of striking aesthetic design and significant horological engineering. Boasting a charismatic two-tone tuxedo dial and powered by a highly desirable micro-rotor movement, this timepiece captures the sophisticated essence of 1960s dress watches. The integration of Buren-based micro-rotor technology allowed Hamilton to achieve an elegantly slim case profile while maintaining the convenience of an automatic winding system, making this a mechanically intriguing and visually distinctive addition to any vintage collection. Brand: Hamilton Model: Automatic Serial Number: R917812 Movement: Automatic, Caliber 666 (Micro-Rotor), 17 Jewels Dial: Two-tone silver and grey bullseye dial with visible spotting and age-consistent patina Case Size: 34 mm (excluding the crown) Case Material: Stainless Steel Production Year: 1960s Condition: Good vintage condition with honest wear and distinct dial patina Dial and Hands The dial features a striking two-tone "bullseye" or tuxedo configuration, characterized by a bright silver sunburst center, a contrasting dark grey textured middle chapter ring, and a silver outer minute track. The typography is executed in a clean sans-serif font, with "HAMILTON" printed below the twelve o'clock position and "AUTOMATIC" above the six o'clock position, complemented by a crisp "SWISS" designation at the very bottom edge. Upon close inspection, the dial exhibits distinct, visible spotting and freckling throughout, particularly concentrated across the dark middle ring and extending into the silver sections. This presents as an honest, age-consistent patina that adds undeniable vintage character. The faceted steel dauphine hands show noticeable oxidation and surface aging, perfectly matching the overall patinated aesthetic of the dial. Case and Crystal The 34mm stainless steel case features a slender, elegant profile with gracefully sweeping straight lugs. The polished surfaces display honest signs of wear, including light superficial scratches and minor handling scuffs typical of a watch from this era, while retaining strong, well-defined geometry without signs of heavy over-polishing. The original factory lines remain highly appreciable. A domed acrylic crystal protects the dial and remains largely clear, exhibiting only minor surface wear consistent with careful use over the decades. The plain snap-on caseback is securely fitted, and the interior is correctly stamped by the Star Watch Case Company, bearing the serial number R917812. Movement Powering this timepiece is the historically significant Hamilton Caliber 666, a brilliantly engineered micro-rotor automatic movement based on Buren's pioneering architecture. The copper-finished plates are beautifully preserved and clearly stamped with "HAMILTON WATCH CO.", "666", "SEVENTEEN 17 JEWELS", "SWISS UNADJUSTED", and the "HYL" import code. The micro-rotor mechanism allows for a distinctly flat profile and an unobstructed view of the escapement and gear train. Running in vintage operational condition. Maintains the authentic mechanical character of the era. Timegrapher results indicate +39s to +45s/day. Strap The watch is fitted with a period-correct black leather strap featuring an embossed crocodile grain pattern. It is secured by a standard stainless steel tang buckle, providing a comfortable fit and a classic, formal dress watch aesthetic that perfectly complements the tuxedo dial. Condition The watch is presented in good vintage condition. The stainless steel case remains structurally sound with normal, honest handling marks and light scratches throughout the polished surfaces. The dial shows significant but visually coherent spotting and natural aging, clearly confirming its originality. The dauphine hands display expected oxidation consistent with the dial's patina. The micro-rotor movement presents beautifully and is functioning within expected vintage parameters. Dimensions Case Size: 34 mm (excluding the crown) Remarks This Hamilton Automatic is a highly charismatic example of mid-century watchmaking, elevated by its desirable micro-rotor caliber and its striking two-tone dial. The honest patina speaks to a lifetime of wear while offering a fantastic opportunity for collectors to acquire a mechanically fascinating and visually distinct vintage dress watch with true character. History Hamilton holds a prestigious place in American watchmaking history, historically known for its precision pocket watches and elegant mid-century wristwatches. During the mid-20th century, Hamilton partnered with premier Swiss manufacturers, notably Buren, to incorporate groundbreaking technologies into their lineup. The adoption of the planetary micro-rotor automatic movement was a major milestone, allowing for much thinner case profiles without sacrificing the convenience of self-winding mechanisms. This era produced some of the most elegant and technologically interesting dress watches of the 1960s, cementing Hamilton's reputation for combining American design sensibilities with advanced Swiss mechanics. Payment and Shipping Payment must be completed within 1–3 days after purchase. Your watch will be professionally and very securely packaged, and shipped with tracking and insurance for your peace of mind. We ship via fast express service, with typical delivery in 1–4 business days (destination dependent). Note that with vintage watches, minor signs of wear, aging, or imperfections may be present and are considered normal for watches of this age. Please review all photos carefully before bidding. We strive to photograph each watch from multiple angles for the most accurate representation. The photos form an important part of the description. If there are any concerns of functionality or defects after delivery, make sure to contact us within 3 days of receiving the watch so we can assist you. As with all vintage watches, water resistance is not guaranteed. If you have any questions, feel free to contact us after the auction ends. / Second Vintage SKU: HAM-HAX-0006