{"product_id":"000000008784","title":"Grand Seiko 6146-8000 Late Model, 10-Beat, Automatic, Overhauled, Manufactured in 1968 (Showa 43)","description":"\u003cp\u003eThis is a 1968 \"61 Grand Seiko (Ref. 6146-8000).\"\u003c\/p\u003e\n\n\u003cp\u003eThe 61 Grand Seiko, introduced in 1967, was the first Japanese-made wristwatch with a 10-beat automatic movement.\u003cbr\u003e\nIt is equipped with a next-generation automatic winding mechanism that successfully \u003cspan class=\"marker\"\u003eadapted Seiko's proprietary \"Magic Lever\" ratcheting system to a high-frequency rate of 36,000 vibrations per hour\u003c\/span\u003e.\u003cbr\u003e\nThis is a highly practical day-date model featuring a hack function (second-hand stop), a quick-set date, day-of-the-week adjustment via hand manipulation, and manual winding.\u003cbr\u003e\nThe rotor surface features a \"rippled\" finish, and other components are also meticulously polished, conveying the dignity characteristic of Grand Seiko timepieces from that era.\u003c\/p\u003e\n\n\u003cp style=\"background:#eeeeee;border:1px solid #cccccc;padding:10px 15px;\"\u003eThe ratcheting \"Magic Lever\" is a mechanism that winds the mainspring by converting the rotational movement of the rotor into the reciprocating motion of a lever (pawl).\u003cbr\u003e\n\u003cspan class=\"marker\"\u003eCompared to systems that wind via gear trains, it is characterized by higher winding efficiency.\u003c\/span\u003e\u003cbr\u003e\nBecause it has fewer parts, it is also highly durable, making it an excellent mechanism that many manufacturers have adopted in recent years.\u003c\/p\u003e\n\n\u003cp\u003eThis particular unit features \"\u003cstrong\u003eHI-BEAT 36000\u003c\/strong\u003e\" engraved at the 6 o'clock position on the dial.\u003cbr\u003e\nThe engraving on the automatic rotor reads \"\u003cstrong\u003eSEIKO\u003c\/strong\u003e\".\u003cbr\u003e\nThe gold medallion on the case back, featuring the \"\u003cstrong\u003eGS\u003c\/strong\u003e\" and \"\u003cstrong\u003eSuwa\u003c\/strong\u003e\" marks, remains in beautiful condition.\u003c\/p\u003e\n\n\u003ch4\u003eCondition\u003c\/h4\u003e\n\n\u003cp\u003eThis watch has been \u003cspan class=\"marker\"\u003eoverhauled and the exterior has been refinished\u003c\/span\u003e.\u003cbr\u003e\nCrown operation is smooth, and the automatic rotor functions correctly.\u003cbr\u003ePlease enjoy the unique manual winding feel and rotor sound of the 61GS, which offer a mechanical charm exclusive to the high-beat \u0026amp; Magic Lever combination.\u003c\/p\u003e\n\n\u003cp\u003eThe case retains the sharp edge lines unique to the 8000 series, maintaining wonderful condition without any thinning due to excessive polishing.\u003cbr\u003e\nThe crown is a valuable genuine part featuring the GS mark, with clear engravings.\u003cbr\u003e\nThe crystal is clear with no noticeable scratches, ensuring good visibility.\u003cbr\u003e\nWhile light vintage-typical aging is visible around the calendar and the edges of the dial, it is not noticeable to the naked eye and does not detract from the overall beautiful atmosphere or the brilliance of the hands and indices.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan class=\"marker\"\u003eThe strap has been replaced with a brand-new genuine Seiko leather strap\u003c\/span\u003e, ensuring comfortable wear.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan class=\"marker\"\u003eAs this is a vintage watch, it is not water-resistant.\u003c\/span\u003e Usage in environments with moisture (such as on rainy days, while washing your face, or wearing it on hot, sweaty days) is strictly prohibited.\u003cbr\u003e\nAs this is a precision instrument, please be careful to avoid drops and strong impacts.\u003cbr\u003e\nAlso, please be careful not to bring it near items that emit strong magnetic fields, such as smartphones, PCs, or bag clasps.\u003c\/p\u003e\n\n\n\u003ch4\u003eOperation Instructions\u003c\/h4\u003e\n\n\u003cp\u003e\u003cstrong\u003eManual Winding\u003c\/strong\u003e: Rotate clockwise with the crown in the standard position\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePulling the Crown\u003c\/strong\u003e: Gently pull the crown out by inserting a fingernail between the case and the crown\u003c\/p\u003e\n\n\u003cp style=\"margin-left: 40px;\"\u003eIf the crown is pulled with too much force, there is a risk of it coming out; please pull it out gently.\u003cbr\u003e\nTo prevent bending the crown, remove the watch from your wrist before operation.\u003cbr\u003e\nOperating it gently reduces the strain on the crown.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuick-Set Date\u003c\/strong\u003e: Rotate clockwise with the crown pulled out to the first click\u003c\/p\u003e\n\n\u003cp style=\"margin-left: 40px;\"\u003e\u003cspan class=\"marker\"\u003eThe movement may be damaged if the quick-set operation is performed while the time is set between 9:00 PM and 3:00 AM.\u003c\/span\u003e\u003cbr\u003e\nWe recommend setting the time to around 6 o'clock before performing the quick-set.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTime Setting\u003c\/strong\u003e: Rotate counter-clockwise with the crown pulled out to the second click\u003c\/p\u003e\n\n\u003cp style=\"margin-left: 40px;\"\u003eThe second hand will stop when the crown is pulled to the second click (hack function).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDay Adjustment (via hand manipulation)\u003c\/strong\u003e: Move the hands back and forth between \"10:30 PM and 1:15 AM\" with the crown in the second click position\u003c\/p\u003e\n\n\u003cp style=\"margin-left: 40px;\"\u003e1) Move the hands forward until midnight (12:00 AM).\u003cbr\u003e\nIf the day begins to change, it is midnight. If it does not, it is 12:00 PM.\u003cbr\u003e\n\u003cbr\u003e\n2) Move the hands forward to \u003cstrong\u003e1:15 AM\u003c\/strong\u003e to advance the day. Then, move the hands back to \u003cstrong\u003e10:30 PM\u003c\/strong\u003e.\u003cbr\u003e\nThis prepares the calendar to show the next day. (When moving the hands backward, the display will show FRI→FRI, etc.)\u003cbr\u003e\n\u003cbr\u003e\n3) Advance the hands to \u003cstrong\u003e1:15 AM\u003c\/strong\u003e.\u003cbr\u003e\nConfirm that the day has advanced by one.\u003cbr\u003e\n\u003cbr\u003e\nBy repeating this process, you can advance the day one by one.\u003cbr\u003e\nPlease operate slowly to reduce the burden on the movement.\u003c\/p\u003e","brand":"WATCH COLLE","offers":[{"title":"Default Title","offer_id":56190706778417,"sku":"000000008784-001","price":0.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/4939\/5761\/files\/1_000000008784.jpg?v=1788949900","url":"https:\/\/watch-colle.com\/en\/products\/000000008784","provider":"WATCH COLLE","version":"1.0","type":"link"}