{"product_id":"seiko-srpj41-time-sonar-kosuke-kawamura-le","title":"Seiko SRPJ41 “Time Sonar” Kosuke Kawamura LE","description":"\u003ch3 data-section-id=\"1ln8o0v\" data-start=\"124\" data-end=\"137\"\u003eOverview:\u003c\/h3\u003e\n\u003cp data-start=\"138\" data-end=\"345\"\u003eA bold reinterpretation of Seiko’s experimental past, the SRPJ41 “Time Sonar” combines vintage-inspired elements with a modern transparent dial—revealing the movement of its calendar components in real time.\u003c\/p\u003e\n\u003chr data-start=\"347\" data-end=\"350\"\u003e\n\u003ch3 data-section-id=\"14aghy6\" data-start=\"352\" data-end=\"364\"\u003eHistory:\u003c\/h3\u003e\n\u003cp data-start=\"365\" data-end=\"561\"\u003eReleased in 2022 in collaboration with \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eKosuke Kawamura\u003c\/span\u003e\u003c\/span\u003e, the SRPJ41 draws direct inspiration from Seiko’s original \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eSeiko Time Sonar\u003c\/span\u003e\u003c\/span\u003e models of the 1970s.\u003c\/p\u003e\n\u003cp data-start=\"563\" data-end=\"663\"\u003eRather than being a straight reissue, this piece is a curated fusion of multiple vintage references:\u003c\/p\u003e\n\u003cul data-start=\"664\" data-end=\"822\"\u003e\n\u003cli data-section-id=\"1mvq9kv\" data-start=\"664\" data-end=\"718\"\u003eCheckered bezel inspired by a 1969 Seiko reference\u003c\/li\u003e\n\u003cli data-section-id=\"1d7n36l\" data-start=\"719\" data-end=\"773\"\u003eHandset and dial elements from the 1976 Time Sonar\u003c\/li\u003e\n\u003cli data-section-id=\"1c11ehj\" data-start=\"774\" data-end=\"822\"\u003eDial ring cues from late 1960s Seiko designs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"824\" data-end=\"952\"\u003eThis layered approach reflects Kawamura’s collage-style design philosophy, blending different eras into a single cohesive piece.\u003c\/p\u003e\n\u003chr data-start=\"954\" data-end=\"957\"\u003e\n\u003ch3 data-section-id=\"1f0yxpm\" data-start=\"959\" data-end=\"992\"\u003eSpecifications and Condition:\u003c\/h3\u003e\n\u003cp data-start=\"994\" data-end=\"1231\"\u003eOverall: New\u003cbr data-start=\"1012\" data-end=\"1015\"\u003eCase: Excellent\u003cbr data-start=\"1072\" data-end=\"1075\"\u003eCrystal: Clean\u003cbr data-start=\"1099\" data-end=\"1102\"\u003eDial: Clean\u003cbr data-start=\"1132\" data-end=\"1135\"\u003eMovement: Running well within specifications\u003cbr data-start=\"1179\" data-end=\"1182\"\u003eBracelet\/Strap: Original\u003cbr data-start=\"1206\" data-end=\"1209\"\u003eIncludes: Fullset Box Paper\u003c\/p\u003e\n\u003ch3 data-section-id=\"18oot6n\" data-start=\"1238\" data-end=\"1251\"\u003eMovement:\u003c\/h3\u003e\n\u003cp data-start=\"1252\" data-end=\"1281\"\u003e4R Series\u003c\/p\u003e\n\u003ch3 data-section-id=\"v4kudb\" data-start=\"1417\" data-end=\"1432\"\u003eDimensions:\u003c\/h3\u003e\n\u003cp data-start=\"1433\" data-end=\"1488\"\u003e42mm diameter\u003cbr data-start=\"1450\" data-end=\"1453\"\u003e22mm lug width\u003cbr data-start=\"1468\" data-end=\"1471\"\u003e13mm thickness\u003c\/p\u003e\n\u003ch3 data-section-id=\"1a9qc6k\" data-start=\"1495\" data-end=\"1514\"\u003eDesign Details:\u003c\/h3\u003e\n\u003cul data-start=\"1515\" data-end=\"1776\"\u003e\n\u003cli data-section-id=\"wt396y\" data-start=\"1515\" data-end=\"1588\"\u003eSemi-transparent “Time Sonar” dial revealing the date wheel in motion\u003c\/li\u003e\n\u003cli data-section-id=\"sjaihs\" data-start=\"1589\" data-end=\"1663\"\u003eCollage-inspired design pulling from multiple vintage Seiko references\u003c\/li\u003e\n\u003cli data-section-id=\"gjo3vd\" data-start=\"1664\" data-end=\"1713\"\u003eCheckered bezel adding strong retro character\u003c\/li\u003e\n\u003cli data-section-id=\"1b45ugz\" data-start=\"1714\" data-end=\"1776\"\u003eLayered dial construction with depth and visual complexity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"gt4qfz\" data-start=\"1783\" data-end=\"1800\"\u003eClosing Note:\u003c\/h3\u003e\n\u003cp data-start=\"1801\" data-end=\"2127\"\u003eThe SRPJ41 is less about everyday versatility and more about storytelling bridging Seiko’s experimental past with modern design language. For collectors who appreciate vintage Seiko history and unconventional aesthetics, this collaboration offers a unique and thoughtful reinterpretation of a largely forgotten design concept.\u003c\/p\u003e","brand":"JDM Horologist","offers":[{"title":"Default Title","offer_id":48853230387443,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0698\/4984\/1907\/files\/h7t59g1302xf1.jpg?v=1776501900","url":"https:\/\/jdmhorologist.net\/products\/seiko-srpj41-time-sonar-kosuke-kawamura-le","provider":"JDM Horologist","version":"1.0","type":"link"}