{"product_id":"000000008575","title":"【With Swiss IWC Certificate of Authenticity】IWC Yacht Club 14K YG\/SS Ref. 1911 (R911A) Cal. 8541B Manufactured 1969 Overhauled","description":"\u003ch3\u003e⌚️ Product Description: IWC's Masterpiece Sports Model, the 'Yacht Club'\u003c\/h3\u003e\u003cp\u003eThis product is the IWC luxury sports model '\u003cstrong\u003eYacht Club\u003c\/strong\u003e', which featured shock resistance and water resistance (at the time). To improve the shock resistance of the movement, it adopted an innovative structure where the 'inner case' housing the movement was 'suspended' within the main case by multiple rubber mounts.\u003cbr\u003eThis particular piece is a rare \"early model\" specification, where the 'inner case' is large enough to cover the rotor.\u003c\/p\u003e\u003cp\u003eThe case back is a robust screw-back type, and the crown features the 'fish logo', a mark of authenticity.\u003c\/p\u003e\u003cp\u003eThe dial features a \u003cstrong\u003esunray finish\u003c\/strong\u003e with fine radial lines, creating beautiful shading from the center to the outer edge, giving it a luxurious feel.\u003cbr\u003eAt the 12 o'clock position, it features the cursive '\u003cstrong\u003eInternational Watch Co.\u003c\/strong\u003e' inscription and the \u003cstrong\u003eapplied IWC logo\u003c\/strong\u003e, exuding a vintage elegance.\u003c\/p\u003e\u003ch3\u003e🏆 IWC Headquarters Official Certification! Definitive Proof of 14K Solid Gold\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003e🥇 [Definitive Proof of Gold Content] Why We Obtained an IWC Official Certificate of Authenticity\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNormally, for solid gold case watches, we confirm the gold content by checking the hallmarks. However, this IWC Yacht Club Ref.1911 has a unique \"combination specification\" with a 14K YG case body and a stainless steel case back, making it difficult to confirm the gold content via standard hallmarks.\u003c\/p\u003e\u003cp\u003eTherefore, to obtain \u003cstrong\u003edefinitive proof of its gold content\u003c\/strong\u003e, this product was sent to the \u003cstrong\u003eIWC headquarters in Schaffhausen, Switzerland\u003c\/strong\u003e, where an \u003cstrong\u003eofficial Certificate of Authenticity\u003c\/strong\u003e was obtained from local experts. This process, which required significant time and expense, officially confirmed by IWC that the case body is \u003cstrong\u003e14K solid gold (585)\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003e⚙️ Movement and Condition\u003c\/h3\u003e\u003cp\u003eThe installed movement is IWC's proud Pellaton automatic winding '\u003cstrong\u003eCal.8541B\u003c\/strong\u003e'. This caliber is thinner than the conventional Cal.8531 and features a \u003cstrong\u003equick-set date function\u003c\/strong\u003e, \u003cstrong\u003emanual winding\u003c\/strong\u003e, and a \u003cstrong\u003ehack second function\u003c\/strong\u003e, making it highly practical despite its vintage status.\u003c\/p\u003e\u003cp\u003eThis watch has been \u003cspan class=\"marker\"\u003eoverhauled\u003c\/span\u003e.\u003c\/p\u003e\u003cp\u003eThe strap has been replaced with a new one (made by Morellato), ensuring comfortable wear.\u003cbr\u003e\u003cspan class=\"marker\"\u003eThe buckle is genuine IWC (gold-plated)\u003c\/span\u003e.\u003cbr\u003eThe crown is genuine with the fish logo, and crown operation is smooth.\u003c\/p\u003e\u003cp\u003eThe case and case back have minor scratches, and there is a ding on the side at the 2 o'clock position. The crystal has minor scratches and linear marks, but dial legibility is good.\u003c\/p\u003e\u003chr\u003e\u003cp style=\"font-weight: bold;\"\u003e【Precautions Before Purchase】\u003c\/p\u003e\u003cp\u003e\u003cspan class=\"marker\"\u003eAs this is an old watch, it is not waterproof.\u003c\/span\u003e Do not use it in humid environments (rainy days, while washing your face, wearing it on hot, sweaty days, etc.).\u003cbr\u003eAs it is a precision instrument, please be careful of drops and strong impacts.\u003cbr\u003eAlso, please keep it away from strong magnetic fields emitted by smartphones, PCs, bag clasps with magnets, etc.\u003c\/p\u003e\u003ch4\u003eHow to Operate Caliber 8541B\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eManual winding\u003c\/strong\u003e: Rotate the crown upwards in its normal position.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTime setting\u003c\/strong\u003e: Pull the crown out and rotate it upwards.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eQuick-set date\u003c\/strong\u003e: Pull the crown out and move the hands back and forth between '11:45 PM and 12:00 AM' for time setting.\u003c\/p\u003e\u003cp style=\"margin-left: 40px;\"\u003e1) Move the hands until 12:00 AM (midnight).\u003cbr\u003e　　If the date changes, it is midnight. If it doesn't change, it is noon.\u003cbr\u003e\u003cbr\u003e2) Once you have confirmed the date has changed, move the hands back to \u003cstrong\u003e11:45 PM\u003c\/strong\u003e.\u003cbr\u003e　　This prepares the watch to display the next day's calendar.\u003cbr\u003e\u003cbr\u003e3) Advance the hands to \u003cstrong\u003e12:00 AM\u003c\/strong\u003e.\u003cbr\u003e　　Confirm that the date has advanced by one day.\u003cbr\u003e\u003cbr\u003eRepeat steps 1) to 3) to quick-set the date one day at a time.\u003cbr\u003ePlease operate slowly to minimize stress on the movement.\u003c\/p\u003e","brand":"WATCH COLLE","offers":[{"title":"Default Title","offer_id":56190427857201,"sku":"000000008575-001","price":0.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/4939\/5761\/files\/1_000000008575.jpg?v=1788948041","url":"https:\/\/watch-colle.com\/en\/products\/000000008575","provider":"WATCH COLLE","version":"1.0","type":"link"}