{"product_id":"grand-seiko-hi-beat-sbgj251","title":"Hi-Beat SBGJ251","description":"The Hi-Beat GMT 9S86 caliber runs at 36,000 bph, has a 55-hour power reserve, and an accuracy rating of +5\/-3 seconds a day. Through the utilization of MEMS and through the development of Spron alloys for the mainspring and hairspring, Grand Seiko was able to create high frequency movements that could maintain a 55-hour power reserve while running at a high frequency.","brand":"Grand Seiko","offers":[{"title":"WGSKG00083","offer_id":47045165678748,"sku":"WGSKG00083","price":7700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/4487\/8492\/files\/37077500_C00785817_747067_WGSKG00083_1.jpg?v=1781217237","url":"https:\/\/zadok.com\/products\/grand-seiko-hi-beat-sbgj251","provider":"Zadok Jewelry","version":"1.0","type":"link"}