Offered in this auction by Second Vintage A superb opportunity to acquire a classic Japanese automatic: the Seiko LM 5606-6000. Representing the distinguished Lord Matic line, this watch features the iconic cushion-shaped stainless steel case and a striking black dial. With production confirmed to 1971 by its serial number, this specimen combines vintage charm with mechanical integrity. Of special note, recent timegrapher results of +48 to +51 seconds per day indicate a healthy, robust movement—a rare find among Seiko Lord Matic pieces of this era. A true collector’s example that blends timeless design with excellent preservation. Brand: Seiko Model: LM (Lord Matic) Reference Number: 5606-6000 Serial Number: 113345 Movement: Automatic, Seiko 5606 Dial: Black with applied silver-tone markers and day-date at 3 o’clock Case Size: 35 mm (excluding the crown) Case Material: Stainless steel Production Year: 1971 Condition: Well-preserved with light, honest signs of wear and strong timegrapher performance (+48 to +51s/day), reflecting a healthy movement for its age. Dial and Hands The black dial presents beautifully with a vertical brushed finish and crisp applied silver markers. The original luminous material on both the markers and baton hands has aged gracefully to a creamy tone, lending characteristic vintage appeal. All text and logo details remain sharp; the day-date window at 3 o’clock is clean and functional. Case and Crystal The 35 mm cushion case retains its original lines, with clearly defined brushing and polished accents. Light surface marks typical of careful wear are visible, with no deep scratches or dents. The acrylic crystal is clear with only minor superficial wear, ensuring excellent visibility of the dial. The unsigned crown sits flush and appears original. Movement Powered by the Seiko automatic 5606 movement, highly regarded for its reliability. Recent timegrapher readings register at +48 to +51 seconds per day, underscoring healthy operation and the enduring quality of Seiko engineering. The watch is running within vintage tolerances, offering dependable use for years to come. Strap Fitted with a new, high-quality black leather strap and stainless steel buckle, tastefully complementing the watch’s design and ready for immediate wear. Condition Overall, this Seiko LM remains in excellent vintage condition. The watch displays clean case lines, an attractive dial with evenly aged lume, and a crystal in commendable shape. Movement performance, as confirmed by recent timegrapher data, indicates the watch is operating reliably. Dimensions Case diameter: 35 mm (excluding the crown) Remarks The combination of a well-preserved cushion case, original black dial, and healthy 5606 movement sets this Seiko LM apart. Examples in such condition, especially with documented timegrapher performance, seldom become available. History The Seiko Lord Matic series debuted in the late 1960s as Seiko’s answer to the demand for refined, premium automatics. Renowned for their technical innovation and distinctive design, Lord Matic models like the 5606-6000 have earned a devoted following among collectors. This reference, with its characteristic cushion case and robust movement, exemplifies the enduring legacy of Seiko’s golden era of mechanical watchmaking. Payment and Shipping Payment must be completed within 1-3 days after purchase. The watch will be securely packaged and shipped with tracking and insurance for your peace of mind. Please review the pictures carefully before bidding. We strive to showcase the watch from multiple angles for an accurate representation. As with all vintage watches, water resistance is not guaranteed. The watch will be delivered in fully functional working condition. If you have any questions, feel free to contact us after the auction ends. / Second Vintage SKU: SEI18KUSK0000