Rare Vintage Seiko 6660-6000 Men’s 21J Manual Classic Dress Watch JDM 1960s

Up for sale is a rare vintage Seiko 6660-6000 men’s 21-jewel manual wind dress watch, produced exclusively for the Japan Domestic Market (JDM) during the 1960s. This elegant classic showcases Seiko’s renowned craftsmanship from the era, featuring a beautifully proportioned square case paired with a distinctive bracelet design that gives the watch a refined and timeless appearance. The watch is in full working condition and is running and holding accurate time over a 24-hour period. I am unsure whether the bracelet is original to the watch, though all other parts of the watch are original. The watch is in good vintage physical condition with signs of use and age. The photos best describe its physical condition and should be reviewed carefully prior to purchase. Key Details: * Brand: Seiko * Model: 6660-6000 * Era: 1960s * Market: Japan Domestic Market (JDM) * Movement: Manual Wind * Jewels: 21 * Display: Analog * Case Material: Stainless steel * Case Size: Approximately 27 mm × 32 mm * Bracelet: Originality unknown * Condition: Full working condition. Running and holding accurate time over a 24-hour period. * Originality: All other parts original * Physical Condition: Good vintage physical condition with signs of use and age A distinctive and increasingly difficult-to-find vintage Seiko dress watch, combining a sophisticated square case with a unique bracelet design that makes it stand out from more conventional models of the period. Ships carefully packaged. Feel free to message me with any questions.