[Serviced] Vintage 1964 Seiko Sportsmatic Calendar 820 EGP 17 Jewels * DIAL: (ORIGINAL) * GLASS (ORIGINAL) * CROWN (ORIGINAL) * CASE (ORIGINAL), CASE SIZE: 37mm. This serviced Vintage 1964 Seiko Sportsmatic Calendar 820 represents a foundational moment in Seiko’s Sportsmatic era, known for bringing reliable automatic performance and modern calendar features to the broader market. Powered by the dependable 17-jewel Caliber 820 (7625) movement, this timepiece delivers the robust mechanical soul and smooth winding that established the Sportsmatic as a mid-century favorite. Recently serviced, the watch runs accurately and operates reliably for daily wear. The elegant silver sunburst dial remains in its 100% original condition, featuring sharp applied indices and a framed date window at 3 o'clock that maintains a balanced, classic aesthetic. The dial captures light beautifully, preserving the authentic mid-century charm of the original 1964 design. The EGP (Elegant Gold Plated) case remains in very good condition, retaining its original factory geometry and refined, unpolished lines. Every component of the watch head - including the dial, original recessed crown, and case - is entirely original and factory-correct. The gold finish provides a warm, luxurious presence that perfectly complements its classic dress-watch proportions. While the watch head is completely original, it has been paired with a high-quality replacement strap to ensure it is ready for immediate use. Highly regarded by enthusiasts for its historical role in the evolution of the Seiko 5 line, this Sportsmatic Calendar 820 is a standout example of Japanese mechanical heritage. This 1964 model offers a superb combination of rarity, visual elegance, and everyday usability - making it a compelling addition to any serious vintage Seiko collection.
