{"product_id":"エテルナ-エテルナマチック-k18無垢-eterna-eternamatic-18k-solid-gold","title":"ETERNA Eternamatic 18K Solid Gold \/ Boy's Size Automatic","description":"\u003cp\u003eEternamatic: evidence of an innovation written into watch history.\u003c\/p\u003e\n\u003cp\u003eIn 1948 the distinguished Swiss house Eterna developed the world's first movement using ball bearings in the rotor's pivot.\u003c\/p\u003e\n\u003cp\u003eThe technology made the rotor turn smoothly and dramatically improved the efficiency of winding the mainspring.\u003c\/p\u003e\n\u003cp\u003eThe five ball bearings that stand for it were established as Eterna's identity, and as the innovation underlying the later automatic watch they continue to influence the industry.\u003c\/p\u003e\n\u003cp\u003eA boy's size Eternamatic.\u003c\/p\u003e\n\u003cp\u003eCompact, yet with a definite accuracy, it still captivates enthusiasts as a watch that stands for Eterna's inventiveness.\u003c\/p\u003e\n\u003cp\u003eTotal weight 45 grams.\u003c\/p\u003e\u003cp\u003eTo book a visit to the WatchTender Ginza store, please see watchtenderginza.com.\u003c\/p\u003e","brand":"ETERNA","offers":[{"title":"Default Title","offer_id":40311490510977,"sku":null,"price":328000.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/4313\/6385\/files\/IMG_20250613_143340.jpg?v=1749988662","url":"https:\/\/watchtenderjapan.com\/en\/products\/%e3%82%a8%e3%83%86%e3%83%ab%e3%83%8a-%e3%82%a8%e3%83%86%e3%83%ab%e3%83%8a%e3%83%9e%e3%83%81%e3%83%83%e3%82%af-k18%e7%84%a1%e5%9e%a2-eterna-eternamatic-18k-solid-gold","provider":"WatchTender","version":"1.0","type":"link"}