{"product_id":"000000008737","title":"Grand Seiko 6145-8000 Late Model, 10-beat automatic, recently overhauled, manufactured in 1969 (Showa 44).","description":"\u003cp\u003eThis is a late-production model of the \"61 Grand Seiko\" manufactured in 1969.\u003c\/p\u003e\n\n\u003cp\u003eThe 61 Grand Seiko, introduced in 1967, was the first domestically produced 10-beat automatic wristwatch in Japan.\u003cbr\u003e\nIt features a next-generation automatic winding mechanism, as Seiko successfully \u003cspan class=\"marker\"\u003eadapted its proprietary \"Magic Lever\" ratcheting system to handle 36,000 vibrations per hour\u003c\/span\u003e.\u003cbr\u003e\nWith a hack function (second-hand stop), quick-set date, and manual winding, it is an exceptionally practical model.\u003cbr\u003e\nThe rotor features a \"ripple\" finish, and other parts are carefully polished, evoking the dignity unique to Grand Seiko timepieces of that era.\u003c\/p\u003e\n\n\u003cp style=\"background:#eeeeee;border:1px solid #cccccc;padding:10px 15px;\"\u003eThe \"Magic Lever\" ratcheting system is a mechanism that winds the mainspring by converting the rotational movement of the rotor into the lateral movement of a lever (pawl).\u003cbr\u003e\n\u003cspan class=\"marker\"\u003eIt is characterized by higher winding efficiency compared to gear-based winding mechanisms.\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 piece is a late model of the 61GS. It features \"\u003cstrong\u003eHI BEAT 36000\u003c\/strong\u003e\" printed at the 6 o'clock position on the dial.\u003cbr\u003e\nThe automatic winding rotor is engraved with \"\u003cstrong\u003eSEIKO\u003c\/strong\u003e\".\u003cbr\u003e\nThe gold medallion on the case back features the \"\u003cstrong\u003eGS\u003c\/strong\u003e\" and \"\u003cstrong\u003eSuwa\u003c\/strong\u003e\" marks.\u003cbr\u003e\n\u003cbr\u003e\n\u003cstrong\u003eIn addition to the hack function (second-hand stop) and manual winding, it also features a highly practical quick-set date function.\u003c\/strong\u003e\u003cbr\u003e\n\u003cbr\u003e\nWhile some 61GS models include both date and day displays, the \u003cstrong\u003e6145-8000\u003c\/strong\u003e displays only the date, allowing for simple operation.\u003cbr\u003e\nWe recommend this piece for those looking for a date-only model.\u003c\/p\u003e\n\n\u003ch4\u003eCondition\u003c\/h4\u003e\n\n\u003cp\u003eThis watch has been \u003cspan class=\"marker\"\u003eoverhauled and the exterior finished\u003c\/span\u003e.\u003cbr\u003e\nThe crown operation is smooth, and the automatic rotor functions normally.\u003cbr\u003ePlease enjoy the unique manual-winding feel and rotor sound of the 61GS as a mechanical delight unique to high-beat and Magic Lever movements.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan class=\"marker\"\u003eThe strap has been replaced with a new (genuine) one\u003c\/span\u003e, ensuring a comfortable fit.\u003c\/p\u003e\n\n\u003cp\u003eThe crown is an original, valuable piece featuring the GS mark.\u003cbr\u003e\nThe crystal remains in beautiful condition with only light scuffs.\u003cbr\u003e\nThe entire dial has aged over time to a beautiful champagne-gold hue, which is a unique charm of this specific piece.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan class=\"marker\"\u003eAs this is a vintage watch, it is not water-resistant.\u003c\/span\u003e Wearing it in environments exposed to moisture (such as on rainy days, while washing your face, or 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 ensure it is kept away from sources of strong magnetism, such as smartphones, PCs, and magnetic clasps on bags.\u003c\/p\u003e\n\n\n\u003ch4\u003eOperation\u003c\/h4\u003e\n\n\u003cp\u003e\u003cstrong\u003eManual Winding\u003c\/strong\u003e: Rotate clockwise in the normal crown position\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePulling the Crown\u003c\/strong\u003e: Insert a fingernail between the case and the crown and pull out gently\u003c\/p\u003e\n\n\u003cp style=\"margin-left: 40px;\"\u003ePulling the crown too forcefully may cause it to come out. Please pull gently.\u003cbr\u003e\nTo prevent the crown stem from bending, please remove the watch from your wrist before operation.\u003cbr\u003e\nOperating it gently will reduce stress on the crown.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTime Setting\u003c\/strong\u003e: Pull the crown to the second click and rotate counter-clockwise\u003c\/p\u003e\n\n\u003cp style=\"margin-left: 40px;\"\u003eThe second hand stops when the crown is at the second click\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQuick-set Date\u003c\/strong\u003e: Pull the crown to the first click and rotate clockwise\u003c\/p\u003e\n\n\u003cp style=\"margin-left: 40px;\"\u003e\u003cspan class=\"marker\"\u003eOperating the quick-set while the watch hands are between 9:00 PM and 3:00 AM will cause a malfunction.\u003c\/span\u003e\u003cbr\u003e\nWe recommend setting the time to around 6 o'clock before performing the quick-set operation.\u003c\/p\u003e","brand":"WATCH COLLE","offers":[{"title":"Default Title","offer_id":56190621745457,"sku":"000000008737-001","price":0.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/4939\/5761\/files\/1_000000008737.jpg?v=1788949318","url":"https:\/\/watch-colle.com\/en\/products\/000000008737","provider":"WATCH COLLE","version":"1.0","type":"link"}