{"product_id":"seiko-astron-nexter-hac003j-edo-purple-radio-controlled-solar-titanium-145th-anniversary-limited-edition-jdm-watch","title":"SEIKO ASTRON Nexter HAC003J Edo Purple Radio-Controlled Solar Titanium 145th Anniversary Limited Edition JDM Watch","description":"\u003ch2\u003eSEIKO ASTRON Nexter HAC003J\u003c\/h2\u003e\n\u003ch3\u003eA compact titanium radio-controlled solar watch inspired by the traditional Edo Purple color\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWatch Type:\u003c\/strong\u003e Analog radio-controlled solar watch\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCore Features:\u003c\/strong\u003e Edo Purple gradient dial, pure titanium construction, 36.0 mm case, radio time-signal reception, and sapphire crystal\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMarket Designation:\u003c\/strong\u003e Japanese Domestic Market limited edition of 500 pieces\u003c\/p\u003e\n\n\u003ch3\u003eAbout the Watch\u003c\/h3\u003e\n\u003cp\u003eThe SEIKO ASTRON Nexter HAC003J is a 145th anniversary limited edition created around Edo Purple, a traditional color associated with the cultural heritage and creative character of Tokyo. Its purple dial combines a vertical gradient with a horizontal pattern that varies in width, producing a layered appearance as the light changes. Gold-tone details provide a restrained anniversary accent.\u003c\/p\u003e\n\u003cp\u003eThis compact model pairs a 36.0 mm pure titanium case with a matching titanium bracelet. The bracelet’s polished center row adds contrast to the otherwise contemporary design, while the sapphire crystal features Seiko’s Super-Clear Coating. At 8.7 mm thick and 78 g, the watch offers a relatively slim and lightweight configuration without relying on an oversized case.\u003c\/p\u003e\n\n\u003ch3\u003eKey Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eJapan-limited 145th anniversary edition restricted to 500 pieces\u003c\/li\u003e\n\u003cli\u003eEdo Purple gradient dial with a distinctive variable-width horizontal pattern and gold-tone accents\u003c\/li\u003e\n\u003cli\u003ePure titanium case and bracelet protected by Seiko’s DiaShield surface treatment\u003c\/li\u003e\n\u003cli\u003eCaliber 7B62 combines solar charging with automatic radio-controlled time correction\u003c\/li\u003e\n\u003cli\u003eCompact 36.0 mm case with sapphire crystal and 10-bar water resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMovement and Performance\u003c\/h3\u003e\n\u003cp\u003eSolar radio-controlled caliber 7B62 receives standard time signals transmitted from Japan, China, the United States, Germany, and the United Kingdom. When a signal cannot be received, the manufacturer-rated accuracy is an average of ±15 seconds per month. A full charge provides approximately nine months of operation, extending to approximately two years when the power-saving function is active.\u003c\/p\u003e\n\n\u003ch3\u003eTimekeeping Functions\u003c\/h3\u003e\n\u003cp\u003eThe movement supports automatic and manual signal reception, reception-result indication, time-difference adjustment, and automatic hand-position correction. Its full auto-calendar is programmed through December 31, 2099. Actual radio reception depends on the wearer’s location, surroundings, transmitter coverage, and signal conditions.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e SEIKO\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCollection:\u003c\/strong\u003e SEIKO ASTRON\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeries:\u003c\/strong\u003e Nexter\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Seiko 145th Anniversary Limited Edition\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel \/ Reference Number:\u003c\/strong\u003e HAC003J\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMarket Designation:\u003c\/strong\u003e Japanese Domestic Market\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e Japan\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGender Classification:\u003c\/strong\u003e Men’s\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWatch Type:\u003c\/strong\u003e Radio-controlled solar watch\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisplay Type:\u003c\/strong\u003e Analog\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDial Color:\u003c\/strong\u003e Edo Purple\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDial Features:\u003c\/strong\u003e Purple gradient, variable-width horizontal pattern, and gold-tone accents\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCase Dimensions:\u003c\/strong\u003e 42.0 × 36.0 × 8.7 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 78 g\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCase Material:\u003c\/strong\u003e Pure titanium\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Treatment:\u003c\/strong\u003e DiaShield\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrystal:\u003c\/strong\u003e Sapphire crystal\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrystal Coating:\u003c\/strong\u003e Super-Clear Coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBand \/ Bracelet:\u003c\/strong\u003e Titanium bracelet with polished center row\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eClasp:\u003c\/strong\u003e One-push three-fold clasp with Smart Adjuster mechanism\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance:\u003c\/strong\u003e 10 bar\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMagnetic Resistance:\u003c\/strong\u003e Magnetic resistance provided\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMovement Type:\u003c\/strong\u003e Solar radio-controlled quartz\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCaliber:\u003c\/strong\u003e 7B62\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJewels:\u003c\/strong\u003e 6\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAccuracy:\u003c\/strong\u003e Average ±15 seconds per month when a radio signal is not received\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Operating Time:\u003c\/strong\u003e Approximately 9 months from a full charge; approximately 2 years with power saving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRadio-Controlled Timekeeping:\u003c\/strong\u003e Receives standard time signals from Japan, China, the United States, Germany, and the United Kingdom\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCore Functions:\u003c\/strong\u003e Automatic and manual signal reception, reception-result display, time-difference adjustment, automatic hand-position correction, and full auto-calendar through December 31, 2099\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCase-Back:\u003c\/strong\u003e Marked “LIMITED EDITION”\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRelease Date:\u003c\/strong\u003e October 9, 2026\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLimited Edition:\u003c\/strong\u003e Limited to 500 pieces in Japan\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJAN Code:\u003c\/strong\u003e 4954628474971\u003c\/p\u003e\n","brand":"SEIKO","offers":[{"title":"Default Title","offer_id":49022265262335,"sku":"HAC003J","price":226100.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/0561\/5871\/files\/hac003j_1.jpg?v=1786884633","url":"https:\/\/japanheartfulstore.com\/products\/seiko-astron-nexter-hac003j-edo-purple-radio-controlled-solar-titanium-145th-anniversary-limited-edition-jdm-watch","provider":"Japan Heartful Store","version":"1.0","type":"link"}