{"product_id":"serviced-rare-vintage-1965-seiko-sportsmatic-calendar-820-17-jewels-7625-8961","title":"(SERVICED) Rare Vintage 1965 Seiko Sportsmatic Calendar 820 17 Jewels 7625-8961","description":"\u003cp\u003eThis serviced 1965 Seiko Sportsmatic Calendar 820 Ref. 7625-8961 represents mid-1960s Japanese horology, embodying the practical sophistication and mechanical durability of Seiko's foundational automatic lineup. It is powered by the celebrated 17-jewel Caliber 7625 automatic movement from Suwa Seikosha, engineered with Seiko's efficient Magic Lever winding system, Diashock shock protection, and integrated date functionality. Following a full mechanical service, it operates with optimal winding efficiency, crisp date changeovers, and dependable daily precision.\u003c\/p\u003e\u003cp\u003eThe hallmark of this timepiece is its factory-original silvery-white sunburst dial, capturing light with sharp radial brilliance across its clean surface. The layout is appointed with an applied motif, cursive Seiko Sportsmatic script, \"Calendar 820\" typography beneath 12 o'clock, bold \"WATER 30 PROOF\" and \"DIASHOCK 17 JEWELS\" lettering above 6 o'clock, faceted baton hour markers with a prominent double index at 12 o'clock, razor-sharp dauphine hands, and a cleanly framed date window at 3 o'clock.\u003c\/p\u003e\u003cp\u003eThe 36mm stainless steel case preserves its smooth factory curves, slender polished bezel, and neatly contoured lugs that sit comfortably on the wrist. Emphasizing its pure automatic identity, it features Seiko's signature recessed winding crown tucked neatly at 4 o'clock for a sleek, flush silhouette. The watch head remains 100% authentic and unaltered, retaining its original factory dial, hands, crystal, case, and recessed crown. It comes paired with a premium textured dark leather strap.\u003c\/p\u003e\u003cp\u003eAn exceptional 1965 Sportsmatic Calendar reference combining dependable 17-jewel Magic Lever engineering, early \"Water 30 Proof\" dial heritage, signature recessed-crown ergonomics, and pristine factory-original preservation.\u003c\/p\u003e","brand":"HN Vintage Pieces","offers":[{"title":"Default Title","offer_id":50632849293505,"sku":"HNV-268","price":280.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/7250\/0161\/files\/IMG_9064_14b45fb5-6bf7-43dc-85cf-eab8b99e47df.jpg?v=1789965131","url":"https:\/\/hnvintagepieces.com\/products\/serviced-rare-vintage-1965-seiko-sportsmatic-calendar-820-17-jewels-7625-8961","provider":"HN Vintage Pieces","version":"1.0","type":"link"}