{"product_id":"ビューレン-マイクロローター-スーパースレンダー-buren-super-slender","title":"BUREN Super Slender \/ Micro-Rotor Automatic, \"Planet-Rotor\"","description":"\u003cp\u003e— The future the micro-rotor drew —\u003c\/p\u003e\n\u003cp\u003eThe idea of setting the rotor into the movement's mainplate.\u003c\/p\u003e\n\u003cp\u003eIt was a challenge that cut away thickness and redefined the construction of automatic winding.\u003c\/p\u003e\n\u003cp\u003eThe micro-rotor is a poem hidden inside a machine, and a quiet revolution that let a watch sit thinner against the body.\u003c\/p\u003e\n\u003cp\u003e— Two brands, one idea —\u003c\/p\u003e\n\u003cp\u003eAt the end of the 1950s, an idea took root in the Swiss air at two places at once.\u003c\/p\u003e\n\u003cp\u003eBuren and Universal Genève.\u003c\/p\u003e\n\u003cp\u003eThat they reached the same concept at the same time without knowing of each other may not have been coincidence, but a structural inevitability the era demanded.\u003c\/p\u003e\n\u003cp\u003e— Micro-Rotor and Planet-Rotor —\u003c\/p\u003e\n\u003cp\u003eThe name \"Micro-Rotor,\" marked by Universal Genève, became an emblem of beauty and innovation.\u003c\/p\u003e\n\u003cp\u003eBuren's engineer Hans Kocher, meanwhile, wanted the name \"Planet-Rotor.\"\u003c\/p\u003e\n\u003cp\u003eThat name was forgotten as time passed.\u003c\/p\u003e\n\u003cp\u003eNaming is also a way of governing memory.\u003c\/p\u003e\n\u003cp\u003eIn 1954, Hans Kocher applied for patent CH329804A.\u003c\/p\u003e\n\u003cp\u003eThat fact, rarely spoken of, lies quietly buried in watch history.\u003c\/p\u003e\n\u003cp\u003e— Who the invention belonged to —\u003c\/p\u003e\n\u003cp\u003eRemarkably, Universal Genève lost a patent dispute with Buren.\u003c\/p\u003e\n\u003cp\u003eBuren then actively licensed the technology to other firms on the strength of its technical advantage.\u003c\/p\u003e\n\u003cp\u003eUniversal Genève was no exception: for the mechanism fitted to the Polerouter it was obliged to pay Buren a licence fee on every single movement.\u003c\/p\u003e\n\u003cp\u003e— Where the patent went —\u003c\/p\u003e\n\u003cp\u003eUniversal was later granted a patent of its own, in 1958.\u003c\/p\u003e\n\u003cp\u003eGiven that Buren clearly filed first, a commercial compromise seems likely — though no evidence survives to confirm it.\u003c\/p\u003e\n\u003cp\u003eMore than half a century on, a small rotor still turns quietly on the wrist.\u003c\/p\u003e\n\u003cp\u003ePerhaps its real meaning is something only the movement needs to know.\u003c\/p\u003e\n\u003cp\u003eEnjoy at your own wrist a romance of history that reaches across the decades.\u003c\/p\u003e\u003cp\u003eTo book a visit to the WatchTender Ginza store, please use our reservation form.\u003c\/p\u003e","brand":"BUREN","offers":[{"title":"Default Title","offer_id":40362531946625,"sku":null,"price":168000.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/4313\/6385\/files\/IMG_20250613_160114.jpg?v=1755932070","url":"https:\/\/watchtenderjapan.com\/en\/products\/%e3%83%93%e3%83%a5%e3%83%bc%e3%83%ac%e3%83%b3-%e3%83%9e%e3%82%a4%e3%82%af%e3%83%ad%e3%83%ad%e3%83%bc%e3%82%bf%e3%83%bc-%e3%82%b9%e3%83%bc%e3%83%91%e3%83%bc%e3%82%b9%e3%83%ac%e3%83%b3%e3%83%80%e3%83%bc-buren-super-slender","provider":"WatchTender","version":"1.0","type":"link"}