{"product_id":"grand-seiko-heritage-champagne-automatic-spring-drive-3-day-sbga373-p-18400016","title":"Grand Seiko Heritage Champagne Automatic Spring Drive 3-Day SBGA373","description":"\u003cp\u003ePowered by Grand SeikoÕs unique Spring Drive calibre, this model features 44GS Contemporary Design, a contemporary take on the design of the 44GS, which was launched in 1967 and formed the cornerstone of the Grand Seiko design philosophy, Grand Seiko Style.\u003cbr\u003eThe combination of a tempered steel hand and a dial with a thick, silver radiant finish that makes use of Grand SeikoÕs special technology delivers simple and sophisticated quality that wearers can enjoy at any age, coupled with the elegantly radiant case achieved through Zaratsu polishing.\u003cbr\u003eThe movement of the blue steel second hand over the dial further highlights Grand SeikoÕs original glide motion, reflecting the natural and continuous flow of time itself.\u003cbr\u003eIt has a 72-hour (3-day) power reserve, and a power reserve indicator on the bottom left of the dial.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCalibre 9R65:\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eGrand Seiko unveiled Spring Drive in 1999, but its lack of a sufficiently effective automatic winding mechanism and 72-hour power reserve prevent its adoption in the Grand Seiko line. After a further four years of development, the first Grand Seiko 9R Spring Drive was created.\u003c\/p\u003e \u003cdiv\u003e \u003cp\u003eThe winding system and drive time were improved from the existing 48-hour manual winding system to an automatic 72-hour power reserve. The automatic winding mechanism uses Seiko's original Magic Lever mechanism developed in 1959, but with improved productivity, maintainability, and durability to enhance winding efficiency.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cp\u003eCalibre 9R65 is currently the most standard of the 9R Spring Drive movements, and is used in many Grand Seiko models.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWinding mechanism\u003c\/strong\u003e\u003cbr\u003eAutomatic with manual winding\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003cbr\u003e±1 second per day\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePower reserve\u003c\/strong\u003e\u003cbr\u003eApproximately 72 hours\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eNumber of jewels\u003c\/strong\u003e\u003cbr\u003e30 jewels\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003cbr\u003e- Power reserve indicator\u003cbr\u003e- Date display\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Kingdom Watch Company","offers":[{"title":"Default Title","offer_id":44517020041295,"sku":"WA-JLC-05","price":100000.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/1733\/5375\/files\/18400016_1.jpg?v=1772059479","url":"https:\/\/kingdomwatchcompany.com\/products\/grand-seiko-heritage-champagne-automatic-spring-drive-3-day-sbga373-p-18400016","provider":"Kingdom Watch Company","version":"1.0","type":"link"}