{"product_id":"montre-seiko-prospex-automatique-homme-spb239j1-noir-1965-heritage","title":"Seiko Prospex Automatic Men's Watch SPB239J1 Black 1965 Heritage","description":"\u003ch2\u003eThe Prospex 1965 Reimagined in Black: Automatic 6R35, 70-hour Power Reserve\u003c\/h2\u003e\u003ch3\u003eCollection\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eSeiko SPB239J1\u003c\/strong\u003e belongs to the \u003cstrong\u003eProspex 1965 Heritage\u003c\/strong\u003e line, a direct homage to Seiko's first diver from 1965, the 62MAS. This model retains the short-lug case, clean dial, and period proportions—here at 44.3 mm—while incorporating modern standards: anti-reflective sapphire crystal, 6R35 caliber with manual winding, and water resistance increased to 200m.\u003c\/p\u003e\u003ch3\u003eCase\u003c\/h3\u003e\u003cp\u003eThe case of the \u003cstrong\u003eSeiko SPB239J1\u003c\/strong\u003e is made of \u003cstrong\u003estainless steel\u003c\/strong\u003e, with a diameter of \u003cstrong\u003e44.3 mm\u003c\/strong\u003e and a thickness of \u003cstrong\u003e13.4 mm\u003c\/strong\u003e. The \u003cstrong\u003eunidirectional rotating bezel\u003c\/strong\u003e allows for precise measurement of dive times. The black dial is protected by a \u003cstrong\u003esapphire crystal\u003c\/strong\u003e, the most scratch-resistant, with an anti-reflective coating. The case back is a \u003cstrong\u003esolid screw-down\u003c\/strong\u003e design. \u003cstrong\u003eWater resistance is 200m\u003c\/strong\u003e, conforming to ISO 6425 diving standards. The indices and hands are coated with \u003cstrong\u003eLumiBrite\u003c\/strong\u003e, Seiko's luminescent material for extended night visibility. The case benefits from a \u003cstrong\u003eDia-Shield treatment\u003c\/strong\u003e (super-hard coating) which improves its scratch resistance.\u003c\/p\u003e\u003ch3\u003eMovement\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eSeiko SPB239J1\u003c\/strong\u003e is powered by the \u003cstrong\u003eautomatic caliber 6R35\u003c\/strong\u003e, offering a \u003cstrong\u003epower reserve of approximately 70 hours\u003c\/strong\u003e. The 6R caliber is the high-end of Seiko's production automatic movements: it features hacking and manual winding, and offers a significantly longer power reserve than the 4R calibers.\u003c\/p\u003e\u003ch3\u003eStrap\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eSeiko SPB239J1\u003c\/strong\u003e is equipped with a NATO-style \u003cstrong\u003enylon strap\u003c\/strong\u003e, light and breathable, ideal for sports use, fastened with a classic and easy-to-adjust \u003cstrong\u003epin buckle\u003c\/strong\u003e. The lug width is \u003cstrong\u003e20 mm\u003c\/strong\u003e.\u003c\/p\u003e","brand":"SEIKO","offers":[{"title":"Default Title","offer_id":52488819704150,"sku":"SEI461","price":1200.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0818\/6710\/files\/MONTRE-SEIKO-SPB239J1.jpg?v=1773064213","url":"https:\/\/psbwatches.com\/en\/products\/montre-seiko-prospex-automatique-homme-spb239j1-noir-1965-heritage","provider":"PSB WATCHES","version":"1.0","type":"link"}