{"product_id":"rolex-explorer-ii-black-16570-40mm-1997-box-papers","title":"Rolex Explorer II 'Black' 16570 40mm 1997 Box \u0026 Papers","description":"\u003ch2\u003eRolex Explorer II 'Black' 16570 40mm 1997 Box \u0026amp; Papers\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe stainless-steel case is in very good condition with sharp, unpolished lugs. Factory brushing and original chamfers are visible and intact, with only light hairlines from careful wear; no dents or deep marks seen under angled light.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe dial is in excellent condition with a light, even patina that enhances legibility; all printed text is crisp and uniform, and the overall tone is consistent across the display.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe bezel remains unpolished and presents very well, with clean edges and legible markings; only minor surface marks visible on close inspection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eBracelet great with minimal wear and stretch; smooth articulation, tight end-links, secure clasp. Dial excellent with a light, even patina; crisp, uniform printing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"p1\"\u003e\n\u003cb\u003eWitschi WAIO Test Results Summary\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003cp class=\"p2\"\u003eTested on the \u003cstrong\u003eRolex Explorer II 16570\u003c\/strong\u003e \u003cspan class=\"s2\"\u003e\u003cb\u003e40mm (1997)\u003c\/b\u003e\u003c\/span\u003e, complete with box and papers, the movement was assessed using the Witschi WAIO across \u003cspan class=\"s2\"\u003e\u003cb\u003efour positions\u003c\/b\u003e\u003c\/span\u003e to provide a practical indication of real-world performance.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eThe watch recorded an \u003cspan class=\"s2\"\u003e\u003cb\u003eaverage rate of +10 seconds per day\u003c\/b\u003e\u003c\/span\u003e, which is within an acceptable range for a mechanical movement of this type and age. \u003cspan class=\"s2\"\u003e\u003cb\u003eBeat error measured 0.2 ms\u003c\/b\u003e\u003c\/span\u003e, indicating good balance alignment and efficient impulse delivery. \u003cspan class=\"s2\"\u003e\u003cb\u003eAmplitude averaged 248 degrees\u003c\/b\u003e\u003c\/span\u003e, reflecting stable power transmission and healthy overall movement condition.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eA \u003cspan class=\"s2\"\u003e\u003cb\u003e5 bar pressure test was successfully passed\u003c\/b\u003e\u003c\/span\u003e, confirming the integrity of the case seals at the time of testing.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eOverall, the results indicate a sound and consistently performing movement, with stable regulation and satisfactory pressure resistance for everyday wear.\u003c\/p\u003e","brand":"Crown Vintage","offers":[{"title":"Default Title","offer_id":51869998383383,"sku":"ROL-EXP-II-BLACK-16570-BOX-PAPERS-1997","price":11250.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/8670\/3383\/files\/Rolex-Explorer-II-Black-16570-40mm-1997-Box-Papers-2.jpg?v=1755167499","url":"https:\/\/crownvintage.com.au\/products\/rolex-explorer-ii-black-16570-40mm-1997-box-papers","provider":"Crown Vintage Watches","version":"1.0","type":"link"}