{"product_id":"grand-seiko-sport-gmt-spring-drive-black-ceramic-40-5mm-watch-sbge257","title":"Grand Seiko Sport GMT Spring Drive Black Ceramic 40.5mm Watch SBGE257","description":"This compact Spring Drive sports model incorporates a zirconia ceramic bezel with a surface hardness which is around six times harder than stainless steel.  The Spring Drive movement, pioneered by Seiko Watch Corporation’s engineers, generates energy like a conventional mechanical watch – with a mainspring – but combines this with an electronic regulator to deliver a superior level of precision, never requiring a battery change.  In Spring Drive, the second-hand moves in perfect glide motion, reflecting the natural and continuous flow of time itself. It has a 72-hour power reserve, and a power reserve indicator on the bottom left of the dial.  Grand Seiko: beautifully, precise Japanese watchmaking, from the pinnacle of Seiko Watch Corporation’s in-house manufacture. Every Grand Seiko features signature high standards of Japanese precision, durability and legibility, handcrafted by Takumi artisans.","brand":"Grand Seiko","offers":[{"title":"Default Title","offer_id":54488008229210,"sku":"WATC-GRAS-10-00010072","price":3860.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/6350\/6778\/files\/00-9980.jpg?v=1790590121","url":"https:\/\/wallaceallan.co.uk\/products\/grand-seiko-sport-gmt-spring-drive-black-ceramic-40-5mm-watch-sbge257","provider":"Wallace Allan","version":"1.0","type":"link"}