{"product_id":"ゼニス-ポートロワイヤル-クロノメーター-cal-135-zenith-port-royal-chronometre-50s","title":"ZENITH Port Royal Chronomètre cal.135 \/ 1950s Observatory Calibre","description":"\u003cp\u003e— Stillness marked by supreme accuracy —\u003c\/p\u003e\n\u003cp\u003eA piece carrying a legendary calibre written into watch history.\u003c\/p\u003e\n\u003cp\u003eThe Port Royal, the summit of the chronometers Zenith was proud of.\u003c\/p\u003e\n\u003cp\u003eCounting yellow gold, white gold and steel together, only around 5,000 were produced: a rare piece.\u003c\/p\u003e\n\u003cp\u003e— A heart that won observatory competitions —\u003c\/p\u003e\n\u003cp\u003eOpen the caseback and the Cal.135 lives there: the crystallisation of watchmakers' passion.\u003c\/p\u003e\n\u003cp\u003eIts overwhelmingly large balance turning slowly and accurately is exactly the landscape that stands for the mechanical watch's golden age.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA title meaning \"the king's port\" in French, given only to Zenith's special high-precision watches.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e— An expression drawn by the years —\u003c\/p\u003e\n\u003cp\u003eThe dial has changed beautifully toward a soft patina.\u003c\/p\u003e\n\u003cp\u003eThree-dimensional indexes, and the star emblem of Zenith shining at twelve.\u003c\/p\u003e\n\u003cp\u003eA bearing that only decades can create, and that only vintage is allowed.\u003c\/p\u003e\n\u003cp\u003e— Wearing history at the wrist —\u003c\/p\u003e\n\u003cp\u003eA robust stainless steel case, with composed lug shapes that add a modern impression.\u003c\/p\u003e\n\u003cp\u003eFrom business to a quiet weekend, Zenith's obsession with accuracy — beyond mere usefulness — quietly fills the pleasure of ownership.\u003c\/p\u003e\u003cp\u003eTo book a visit to the WatchTender Ginza store, please use our reservation form.\u003c\/p\u003e","brand":"ZENITH","offers":[{"title":"Default Title","offer_id":40716077793409,"sku":null,"price":980000.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/4313\/6385\/files\/IMG_20260417_124555.jpg?v=1778067632","url":"https:\/\/watchtenderjapan.com\/en\/products\/%e3%82%bc%e3%83%8b%e3%82%b9-%e3%83%9d%e3%83%bc%e3%83%88%e3%83%ad%e3%83%af%e3%82%a4%e3%83%a4%e3%83%ab-%e3%82%af%e3%83%ad%e3%83%8e%e3%83%a1%e3%83%bc%e3%82%bf%e3%83%bc-cal-135-zenith-port-royal-chronometre-50s","provider":"WatchTender","version":"1.0","type":"link"}