{"product_id":"seiko-prospex-hbb004k1-2026-asia-pacific-limited-edition-men-watch","title":"SEIKO PROSPEX HBB004K1 2026 ASIA-PACIFIC LIMITED EDITION MEN WATCH","description":"\u003ch2\u003eSeiko HBB004K1 — Prospex Sea 2026 Asia-Pacific Limited Edition Diver\u003c\/h2\u003e\n\u003cp\u003eThe Seiko HBB004K1 is the second colourway in the 2026 Asia-Pacific Limited Edition diver's pair from Seiko's Prospex Sea collection — sharing the exact same 4R35 automatic calibre, the same 41.7 mm stainless steel case at 12.3 mm thick, the same Hardlex crystal, the same unidirectional rotating bezel, the same screw-down crown, the same screw case back with individual serial number and \"LIMITED EDITION\" marking, the same triple-coverage LumiBrite on hands, indexes, and bezel, 200m diver's water resistance as its sibling the HBB003K1. Limited to 2,500 pieces, each individually serial-numbered, the HBB004K1 offers the same professional dive-tool specification in a different colour expression.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSeiko 4R35 automatic calibre — 23 jewels, approx. 41-hour power reserve, manual winding, stop second hand for precise setting\u003c\/li\u003e\n\u003cli\u003eDate display — practical daily utility at the dial\u003c\/li\u003e\n\u003cli\u003e41.7 mm stainless steel case — 12.3 mm thick, 49.5 mm lug-to-lug, 170 g\u003c\/li\u003e\n\u003cli\u003eHardlex crystal — Seiko's proprietary hardened mineral glass for impact and scratch resistance\u003c\/li\u003e\n\u003cli\u003eUnidirectional rotating bezel — one-way rotation for safe elapsed-time tracking during dives\u003c\/li\u003e\n\u003cli\u003eScrew-down crown — seals the case for water resistance under pressure\u003c\/li\u003e\n\u003cli\u003eScrew case back — with \"LIMITED EDITION\" marking and individual serial number\u003c\/li\u003e\n\u003cli\u003eLumiBrite on hands, indexes, and bezel — triple-coverage luminescence for maximum underwater and low-light legibility\u003c\/li\u003e\n\u003cli\u003e200 m (660 ft) diver's water resistance — For recreational and professional diving\u003c\/li\u003e\n\u003cli\u003e4,800 A\/m magnetic resistance — shielded against everyday magnetic fields\u003c\/li\u003e\n\u003cli\u003eThree-fold clasp with secure lock, push-button release, and diver's extender — wears securely over a wetsuit\u003c\/li\u003e\n\u003cli\u003eLimited to 2,500 pieces — Asia-Pacific exclusive for 2026\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy You'll Love It\u003c\/h3\u003e\n\u003cp\u003eThe HBB004K1 delivers the same professional diver's specification as the HBB003K1 — 200 m ISO diver's rating, screw-down crown, screw case back, unidirectional bezel, triple-coverage LumiBrite — in a different colourway for the buyer who wants the same dive-tool capability with a distinct visual identity. Both models are limited to 2,500 pieces across Asia-Pacific, each individually serial-numbered, so the colourway choice also determines your collectible identity within the pair. Same specification, same exclusivity, different colour personality.\u003c\/p\u003e\n\u003ch3\u003eHBB004K1 vs HBB003K1\u003c\/h3\u003e\n\u003cp\u003eBoth share identical specifications — same 4R35 calibre, same 41.7 mm case, same 12.3 mm thickness, same Hardlex, same unidirectional bezel, same 200 m diver's WR, same triple LumiBrite, same 4,800 A\/m magnetic resistance, same 170 g, same clasp with diver's extender, same 2,500-piece limitation. The only difference is the colourway. If you want both colour expressions from the same limited-edition pair, the \u003ca href=\"\/products\/seiko-prospex-hbb003k1-2026-asia-pacific-limited-edition-men-watch\"\u003eHBB003K1\u003c\/a\u003e is the other half.\u003c\/p\u003e\n\u003ch3\u003eThe Seiko Story\u003c\/h3\u003e\n\u003cp\u003eSince 1881, when Kintaro Hattori founded a clock and watch shop in Ginza, Tokyo, Seiko has been at the forefront of timekeeping innovation — from the world's first quartz wristwatch in 1969 to today's GPS Solar and Spring Drive technologies. Seiko's Prospex (Professional Specifications) line carries a legacy that stretches back to the first Seiko diver's watch in 1965, worn by the Japanese Antarctic Research Expedition. The HBB004K1 continues that heritage as a 2026 Asia-Pacific exclusive — 200 m diver's capability, serial-numbered limited-edition provenance, and the reliability of the proven 4R35 automatic movement.\u003c\/p\u003e\n\u003cp\u003eBacked by Seiko's official warranty. Authentic Seiko Prospex, sold by authorised retailer City Chain Singapore. Limited to 2,500 pieces — Asia-Pacific 2026 exclusive.\u003c\/p\u003e\n\u003cp\u003eExplore more \u003ca href=\"\/collections\/seiko-prospex\" title=\"Seiko Prospex at City Chain Singapore\"\u003eSeiko Prospex\u003c\/a\u003e, browse the full \u003ca href=\"\/collections\/seiko\" title=\"Seiko watches at City Chain Singapore\"\u003eSeiko collection\u003c\/a\u003e, or see all \u003ca href=\"\/collections\/men\" title=\"Men's watches at City Chain Singapore\"\u003eMen's watches\u003c\/a\u003e at City Chain Singapore.\u003c\/p\u003e","brand":"SEIKO","offers":[{"title":"Default Title","offer_id":49603511517399,"sku":"HBB004K1","price":899.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/2451\/7272\/files\/Seiko_HBB004K1.png?v=1787039503","url":"https:\/\/www.citychain.com.sg\/products\/seiko-prospex-hbb004k1-2026-asia-pacific-limited-edition-men-watch","provider":"City Chain Singapore","version":"1.0","type":"link"}