{"product_id":"otsuka-lotec-no-7-5-jumping-hour-jiro-katayama","title":"Otsuka Lōtec No. 7.5 — Jumping Hour | Jiro Katayama","description":"\u003ch2\u003eOtsuka Lōtec No. 7.5 — Jumping Hour\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMaker:\u003c\/strong\u003e Jiro Katayama  ·  \u003cstrong\u003eOrigin:\u003c\/strong\u003e Tokyo, Japan  ·  \u003cstrong\u003eFull Set\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eJiro Katayama is a self-taught Tokyo artisan who founded Otsuka Lōtec to celebrate raw, “low-tech” mechanics. Operating out of the Otsuka neighbourhood, he uses manual machinery to craft fewer than 200 pieces annually. In 2022, he partnered with AHCI master Hajime Asaoka to refine his production architecture.\u003c\/p\u003e\u003cp\u003eThe No. 7.5 is his terminal expression: a dial stripped of traditional hands, replaced by three magnified “fisheye” sapphire lenses. It functions like an analog gauge, featuring a proprietary jumping-hour module that snaps forward with a tactile click. A mechanical instrument for the wrist — rare, lottery-only, and deeply Japanese.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplication:\u003c\/strong\u003e Proprietary jumping-hour module with tactile click\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e Three magnified fisheye sapphire lenses — no traditional hands\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduction:\u003c\/strong\u003e Fewer than 200 pieces annually — lottery allocation only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaker:\u003c\/strong\u003e Jiro Katayama — self-taught Tokyo artisan, AHCI-adjacent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollaboration:\u003c\/strong\u003e Production architecture refined with AHCI master Hajime Asaoka (2022)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Full set\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otsuka Lōtec","offers":[{"title":"Default Title","offer_id":43609878036686,"sku":"OL-7-5-JH-BI-2026","price":10500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/0622\/5870\/files\/Otsuka-Lotec-model-7.5-Jumping-Hour-Japanese-indie-watchmaker-review-4_4a7d6bf9-1fe7-4d51-87f0-588be2199390.webp?v=1784130555","url":"https:\/\/beckhamintemporel.com\/products\/otsuka-lotec-no-7-5-jumping-hour-jiro-katayama","provider":"Beckham Intemporel","version":"1.0","type":"link"}