{"product_id":"grand-seiko-heritage-blue-spring-drive-3-day-sbga375-p-18400017","title":"Grand Seiko Heritage Blue Spring Drive 3-Day SBGA375","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 dial of midnight blue as close to black as possible, coupled with the elegantly radiant case achieved through Zaratsu polishing, delivers both refined taste and high visibility at the same time.\u003cbr\u003eThe movement of the second hand over the dial further highlights Grand SeikoÕs original glide motion, reflecting the natural and continuous flow of time itself. It 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 \u003cdiv\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 \u003c\/div\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 \u003c\/div\u003e \u003cdiv\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\u003cbr\u003e\u003c\/strong\u003e30 jewels\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures\u003cbr\u003e\u003c\/strong\u003e- Power reserve indicator\u003cbr\u003e- Date display\u003c\/p\u003e \u003c\/div\u003e","brand":"Pulse Timepieces","offers":[{"title":"Default Title","offer_id":47312343171316,"sku":"WA-JLC-06","price":100000.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/1192\/8052\/files\/18400017_1.jpg?v=1765833078","url":"https:\/\/pulsetimepieces.com\/products\/grand-seiko-heritage-blue-spring-drive-3-day-sbga375-p-18400017","provider":"Pulse Timepieces","version":"1.0","type":"link"}