{"product_id":"seiko-astron-hab003j1-gps-solar-chronograph-men-watch","title":"SEIKO ASTRON HAB003J1 GPS SOLAR CHRONOGRAPH MEN WATCH","description":"\u003ch2\u003eSeiko Astron HAB003J1 — GPS Solar Chronograph in Titanium\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSeiko Astron HAB003J1\u003c\/strong\u003e belongs to the new 2026 generation of Astron GPS Solar design, pairing satellite-synchronised timekeeping with a full 24-hour chronograph. At its heart is Seiko's Calibre 5X63 GPS solar movement, which connects to GPS satellites to adjust to your time zone automatically and keeps to within ±15 seconds per month even without a signal. The 43.4mm case is crafted from titanium with a super-hard coating, kept to a wearable 12.4mm thickness and 50.0mm lug-to-lug, and finished with a sapphire crystal treated with Seiko's super-clear coating. Powered entirely by light, it runs approximately six months on a full charge and up to two years in power save mode.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGPS solar Calibre 5X63\u003c\/strong\u003e — receives GPS satellite signals to correct the time and time zone at the press of a button, so the watch stays accurate wherever you land, with no battery changes required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24-hour chronograph in 1\/20-second increments\u003c\/strong\u003e — full stopwatch capability measured to a twentieth of a second, a level of timing precision that suits everything from track sessions to flight legs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTitanium case with super-hard coating\u003c\/strong\u003e — around 40% lighter than steel on the wrist, with a scratch-resistant surface treatment that keeps the 43.4mm case looking sharp through daily wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerpetual calendar to February 2100\u003c\/strong\u003e — the date adjusts itself for short months and leap years, decades into the future, with a day display alongside.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorld time across 38 cities with dual-time and time transfer\u003c\/strong\u003e — track a second time zone on the sub-dial and swap it with the main dial in seconds when you travel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone strap with easy-adjust clasp and quick-change system\u003c\/strong\u003e — the three-fold clasp releases at a push of a button for on-the-fly sizing, and the strap swaps without tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for real conditions\u003c\/strong\u003e — 10 bar water resistance, 4,800 A\/m magnetic resistance, LumiBrite on the hands and indexes, and a screw caseback.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy You'll Love It\u003c\/h3\u003e\n\u003cp\u003eThe Astron HAB003J1 is the watch for the man whose week crosses time zones. Land, press a button, and the hands move themselves to local time — no maths, no fiddling with the crown. The titanium build means you barely feel 43.4mm of GPS chronograph on the wrist, and because the dial recharges from any light source, it asks almost nothing of you in return. It is satellite precision worn quietly.\u003c\/p\u003e\n\u003ch3\u003eAstron HAB003J1 vs Astron SSJ037J1\u003c\/h3\u003e\n\u003cp\u003eChoosing between the two? The \u003ca href=\"https:\/\/www.citychain.com.sg\/products\/seiko-astron-ssj037j1-gps-solar-2025-limited-edition-men-watch\"\u003eSeiko Astron SSJ037J1\u003c\/a\u003e takes the cleaner three-hand GPS Solar route for a dressier, simpler presentation, while the HAB003J1 adds the 24-hour chronograph, dual-time sub-dial layout and the new 2026-generation case design. If you time things — flights, laps, calls across regions — the HAB003J1 is the one that earns its place.\u003c\/p\u003e\n\u003ch3\u003eThe Seiko Story\u003c\/h3\u003e\n\u003cp\u003eSeiko was founded in 1881 by Kintaro Hattori in Tokyo, and in 1969 released the Astron, the world's first quartz wristwatch. The Astron name returned in 2012 to mark another first — the world's first GPS solar watch — and the HAB003J1 carries that lineage forward: a watch that takes its time directly from satellites and its energy directly from light.\u003c\/p\u003e\n\u003cp\u003eExplore the full \u003ca href=\"https:\/\/www.citychain.com.sg\/collections\/astron\"\u003eSeiko Astron collection\u003c\/a\u003e or browse all \u003ca href=\"https:\/\/www.citychain.com.sg\/collections\/seiko\"\u003eSeiko watches at City Chain Singapore\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eBacked by Seiko's official warranty. Authentic Seiko Astron watch, sold by authorised retailer City Chain Singapore.\u003c\/p\u003e","brand":"SEIKO","offers":[{"title":"Default Title","offer_id":48761315754199,"sku":"HAB003J1","price":3597.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2451\/7272\/files\/seiko-astron-gps-solar-HAB003J1.png?v=1781080301","url":"https:\/\/www.citychain.com.sg\/products\/seiko-astron-hab003j1-gps-solar-chronograph-men-watch","provider":"City Chain Singapore","version":"1.0","type":"link"}