Available now on auction by Second Vintage The Seikomatic-P represents a fascinating chapter in Seiko's late 1960s lineup, combining high-jewel count automatic movements with innovative ease-of-use features. The "P" in the model name stands for "Push," referring to the ingenious instant date-change mechanism activated by pressing the crown, a feature that set this series apart during the golden age of Japanese watchmaking. This example captures the essence of 1969 executive styling with its bold gold-plated case, sophisticated dial layout, and high-grade 33-jewel movement. Brand: Seiko Model: Seikomatic-P Reference Number: 5106-8020 Serial Number: 942669 Movement: Automatic Caliber 5106A Dial: Silver Sunburst Case Size: 39 mm (excluding the crown) Case Material: Gold Plated (SGP) / Stainless Steel Back Production Year: 1969 Condition: Good vintage condition, showing honest wear and patina consistent with age, running within vintage tolerances. Movement is active and operational. Dial and Hands The dial features a radiant silver sunburst finish that remains largely clean and bright, reflecting light beautifully across its surface. It is adorned with applied gold-tone faceted baton indices, each detailed with a central black inlay for enhanced contrast and legibility against the silver background. The matching gold-tone dauphine hands also feature black central stripes, maintaining the cohesive design language of the era. A framed day-date aperture sits at the 3 o'clock position, displaying the day in English with a clean white background. The applied "SEIKO" logo is crisp at the 12 o'clock position, accompanied by the printed "Seikomatic-P" and "33 Jewels" text, along with the Suwa factory lightning bolt symbol situated above the 6 o'clock marker. Case and Crystal The case is constructed with Seiko's SGP gold plating, featuring a distinct C-shape lug profile that integrates smoothly with the bracelet. The gold plating displays signs of vintage character, with visible surface scratches, scuffs, and areas of tarnish or oxidation, particularly on the bezel and lug edges, indicating a life well-lived. The crown is semi-recessed into the case side, a signature design element of this reference intended to streamline the silhouette. The case back is stainless steel, clearly engraved with the reference and serial numbers. The crystal is a domed acrylic type, showing some surface wear consistent with the overall case condition. Movement Powering the watch is the high-grade Seiko Caliber 5106A automatic movement. This 33-jewel mechanism features a signed rotor and is technically notable for its "push-button" quickset date feature. The movement presents cleanly in the images, with all factory engravings, bridge numerals, and ruby jewels clearly visible, showcasing the quality of Seiko's mid-century engineering. Strap The watch is fitted with a the original gold-tone stainless steel bracelet in a beads-of-rice style configuration. It features a signed Seiko folding clasp and fits a wrist size of approximately 17.5cm. The plating on the bracelet matches the wear pattern of the case, showing honest signs of vintage use and handling. Condition This timepiece is in Good vintage condition. The dial is well-preserved and attractive, contrasting with the case which displays moderate to heavy signs of wear including scratches, dings, and plating loss typical of a gold-plated watch from this era. The movement is clean and functioning. Dimensions The case measures 39 mm in diameter excluding the crown, offering a substantial presence on the wrist that feels modern despite its vintage origins. Remarks The Seikomatic-P is celebrated for its unique date quickset mechanism, where a simple push of the crown advances the date, a convenient and user-friendly feature for the daily wearer. History Introduced in the late 1960s, the Seikomatic line served as Seiko's premium automatic tier, sitting just below the Grand Seiko and King Seiko lines. The 5106 caliber was a technically advanced movement for its time, showcasing Seiko's commitment to combining luxury finishing with practical innovation during the peak of mechanical watch innovation in Japan. 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). 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. 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: SEI-SXX-0004