This is a vintage Seiko Seikomatic-R automatic wristwatch, manufactured in 1966, representing Seiko’s refined mechanical watchmaking during the peak era of Japanese mechanical watch production. Historical Background During the 1960s, Seiko was rapidly expanding its automatic watch lineup, positioning the Seikomatic series as a reliable and well-engineered choice for business use. The Seikomatic-R models were placed above Seiko 5, offering higher specifications and a more refined construction while maintaining everyday practicality. Movement This watch is powered by Caliber 8305, a 30-jewel automatic mechanical movement operating at 18,000 vibrations per hour. The caliber is known for its relatively thin construction compared to earlier Seikomatic movements and employs Seiko’s automatic winding system designed for smooth and efficient winding in daily use. The watch features a date display. The date can be adjusted by pulling the crown to the first position; however, the crown position is delicate, and depending on the exact position, the quick date adjustment may slip. In such cases, the date can be adjusted reliably by rotating the hands in the normal manner. Dial and Design The silver-tone dial features a radial brushed finish with applied baton indices and slim hands, creating a clean and elegant appearance typical of mid-1960s Seiko design. The layout is simple and well balanced, emphasizing legibility and understated refinement. Case The stainless steel case measures approximately 38.1 mm in diameter (excluding the crown), providing a presence that remains well balanced even by modern standards. The gently curved lugs enhance wearability and reflect Seiko’s design direction during this period. The case shows visible signs of age and use consistent with a vintage watch, such as light scratches and wear, but retains its original shape with no structural damage. Case Back The case back is engraved with Seiko’s dolphin emblem, a design mark commonly found on Seiko automatic watches of the 1960s and associated with water-resistant case construction of the period. Strap The watch is fitted with a new leather strap with a 20 mm lug width, providing a clean and wearable presentation while respecting the watch’s vintage character. Condition and Notes The watch has been carefully cleaned. As a vintage item, it was running at the time of listing; however, stable continuous operation and time accuracy are not guaranteed. Water resistance is not guaranteed. Shipping The watch will be carefully packed and shipped with tracking to ensure safe delivery.