{"product_id":"1967-rolex-sea-dweller-1665-stainless-steel-double-red-patent-pending-first-edition-uber-rare","title":"1967 Rolex Sea-Dweller 1665 Stainless Steel Double Red Patent Pending First Edition Uber Rare","description":"\u003cp\u003e1967 Rolex Sea-Dweller\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eReference 1665\u003c\/p\u003e\n\u003cp\u003eStainless Steel\u003c\/p\u003e\n\u003cp\u003eBlack Double Red Dial\u003c\/p\u003e\n\u003cp\u003e“Patent Pending” engraved on the back of the case and clasp. Rolex didn’t release it until closer to 1970. All original.\u003c\/p\u003e\n\u003cp\u003eSize 42mm\u003c\/p\u003e\n\u003cp\u003eBox\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis is an ultra-rare vintage dive watch produced starting in 1967. It features a \"thin case\", a Mark 1 dial with two lines of red text (\"Sea-Dweller\" and \"Submariner 2000\"), and a unique caseback stamped \"Patent Pending\" for its new helium escape valve.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eCaseback Engraving:\u003c\/strong\u003e Reads \"Rolex Oyster Gas Escape Valve\" alongside the rare \"Patent Pending\" text.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eDial Details: \u003c\/strong\u003eMark 1 matte black dial with distinct double red lines of script.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eHelium Escape Valve:\u003c\/strong\u003e Included for saturation diving, before the final patent was granted.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eRarity:\u003c\/strong\u003e Highly sought after by collectors.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe \"Patent Pending\" Double Red Sea-Dweller models were produced primarily between 1967 and 1969.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eRolex filed the patent for its revolutionary Helium Escape Valve (HEV) in November 1967. Because they began manufacturing and distributing these watches before the official patent approval was granted in 1971, early production runs featured the famous \"Patent Pending\" engraving on the caseback. Regular production models made from 1971 onward were updated to read \"Rolex Patent\".\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eMatching Components:\u003c\/strong\u003e Collectors look for an original \"Pat. Pend.\" stamped 9315 fold-over clasp extension and matching date stamps inside the caseback (often stamped IV.67).\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eAnd fitted with its iconic \u003cstrong\u003eTropic 39 Superdome crystal\u003c\/strong\u003e, is one of the most legendary and highly sought-after vintage dive watches in horological history.\u003c\/p\u003e","brand":"glennbradford","offers":[{"title":"Default Title","offer_id":48248553570493,"sku":null,"price":98875.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0464\/5165\/4819\/files\/UN-2453_d75ah9myctk_2026-08-19-15-46-09.jpg?v=1787186917","url":"https:\/\/glennbradford.com\/products\/1967-rolex-sea-dweller-1665-stainless-steel-double-red-patent-pending-first-edition-uber-rare","provider":"Glenn Bradford Fine Jewelry","version":"1.0","type":"link"}