{"product_id":"seiko-prospex-marinemaster-1968-heritage-diver-s-300m-mechanical-automatic-sla077","title":"Seiko Prospex Marine Master 1968 Heritage Diver’s 300M Mechanical Automatic SLA077","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSeiko Prospex Marinemaster 1968 Heritage Diver’s 300M Mechanical Automatic White Dial\u003cbr\u003e\u003cbr\u003eSLA077\u003cbr\u003e\u003c\/span\u003e(JDM Version Model: SBDX063) \u003cbr\u003e\u003c\/strong\u003e\u003cspan style=\"color: rgb(12, 51, 185);\"\u003e\u003cem\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cstyle\u003e\na {\n    text-decoration: none;\n    color: #464feb;\n}\ntr th, tr td {\n    border: 1px solid #e6e6e6;\n}\ntr th {\n    background-color: #f5f5f5;\n}\n\u003c\/style\u003e\n\u003cdiv\u003e\n\u003ch3\u003e\u003cem\u003eWhere the Horizon Meets the Deep!\u003c\/em\u003e\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\na {\n    text-decoration: none;\n    color: #464feb;\n}\ntr th, tr td {\n    border: 1px solid #e6e6e6;\n}\ntr th {\n    background-color: #f5f5f5;\n}\n\u003c\/style\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003eFor decades, Seiko's professional dive watches have been defined by strength, purpose, and unwavering reliability beneath the waves. The \u003cstrong\u003eSLA077 (SBDX063) Marinemaster\u003c\/strong\u003e preserves that heritage while introducing a distinctive new character, inspired by sunlight reflecting across the open sea.\u003c\/p\u003e\n\u003cp\u003eAt its center lies a striking white textured dial, a sharp departure from the dark dials traditionally associated with professional divers. The surface captures the ever-changing interplay between light and water, while bold hands and indexes filled with LumiBrite ensure exceptional legibility in the harshest environments. Protected by a dual-curved sapphire crystal with anti-reflective coating, the dial remains crisp and highly readable whether on deck or deep below the surface.\u003c\/p\u003e\n\u003cp\u003eEngineered for serious underwater use, the SLA077 delivers \u003cstrong\u003e300m air-diving water resistance\u003c\/strong\u003e and the robust build expected from the Marinemaster name. Its case takes inspiration from Seiko's legendary 1968 diver, combining powerful geometry with distortion-free mirror finishing that showcases the brand's renowned craftsmanship. The redesigned bezel and crown feature enhanced knurling for improved grip and operation, even while wearing diving gloves.\u003c\/p\u003e\n\u003cp\u003eHidden beneath the exterior is one of the model's most important technical advancements. Rather than threading the crown directly into the case, Seiko employs a dedicated \u003cstrong\u003ethreaded crown pipe structure\u003c\/strong\u003e, improving long-term durability and reinforcing the watch's professional-grade integrity. This thoughtful engineering reflects the same philosophy that has guided Seiko's dive watch development for more than sixty years: create instruments that perform when it matters most.\u003c\/p\u003e\n\u003cp\u003eWhile many dive watches are designed to disappear into the darkness of the ocean, the \u003cstrong\u003eSLA077 stands out by embracing the light above it\u003c\/strong\u003e. It offers the same uncompromising capability that defines the Marinemaster lineage, presented through a dial that feels fresh, confident, and unmistakably distinctive.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe SLA077 isn't for those who follow the tide. It's for those who chart their own course.\u003c\/strong\u003e Available now at WatchOutz.com, where legends surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003eSLA077 Specifications:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMovement\u003c\/strong\u003e\u003cbr\u003eCaliber: 8L35\u003cbr\u003e\u003cspan\u003eType: Mechanical Automatic with manual winding\u003cbr\u003eAccuracy: +15 to -10 seconds per day\u003cbr\u003eDuration: Approx. 50 hours (fully wound)\u003cbr\u003eFunctions: 24-hour hand (dual time display function); stop second-hand function\u003cbr\u003eJewel: 26\u003cbr\u003eFrequency: 28,800 vph (8 vph)\u003cbr\u003eSecond-hand stop function\u003cbr\u003eCalendar (date) function\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eExterior\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eCase Material: Stainless Steel \u003cbr\u003eCase Coating: DiaShield\u003cbr\u003eCase Size: Thickness: 13.4mm; Width: 42.6mm; Height: 49.3mm\u003cbr\u003eCrystal Material: Dual-Curve Sapphire\u003cbr\u003eCrystal Coating: Anti-Reflective Coating on the Interior\u003cbr\u003eLumibrite: Yes (Hands, Indexes, Bezel)\u003cbr\u003eClasp: One-Push Diver Extender\u003cbr\u003eLug width: 20mm\u003cbr\u003e\u003c\/span\u003e\u003cspan class=\"Y2IQFc\" lang=\"en\"\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eOther Details\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003eWater Resistance: 300m (air diving water resistance)\u003cbr\u003eMagnetic Resistance: Yes\u003cbr\u003eWeight: 196.0g\u003cbr\u003eUnidirectional rotating bezel\u003cbr\u003eScrew-lock crown\u003cbr\u003eDouble-lock clasp\u003cbr\u003eScrew-caseback\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e\u003cem\u003e\u003cspan lang=\"EN-US\"\u003e* Kindly note that the displayed image is either a graphic representation or a prototype and may not precisely reflect the final product. Color variations may occur due to differences in browsers, display settings, or devices used for viewing. Additionally, the orientation of the case back in the actual product may differ from what is shown in the photograph\u003c\/span\u003e\u003cspan lang=\"EN-US\"\u003e.\u003c\/span\u003e\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":50230109241565,"sku":null,"price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2561\/5342\/files\/SLA077J1.png?v=1790224776","url":"https:\/\/www.watchoutz.com\/products\/seiko-prospex-marinemaster-1968-heritage-diver-s-300m-mechanical-automatic-sla077","provider":"WATCH OUTZ","version":"1.0","type":"link"}