{"product_id":"seiko-selection-hfb001j-jdm-open-heart-white-automatic-mens-watch-japan-made","title":"SEIKO SELECTION HFB001J JDM Open Heart White Automatic Men's Watch Japan Made","description":"\u003ch2 data-source-line=\"7-7\"\u003eDescription\u003c\/h2\u003e\n\u003cp data-source-line=\"9-9\"\u003eThe SEIKO SELECTION HFB001J is a men’s mechanical model from the S Series, created to bring the appeal of Japanese automatic watchmaking into a clean and wearable everyday format. Its white dial, simple three-hand layout, and open-heart display give the watch a bright and refined presence while still showcasing the mechanical movement beneath the dial.\u003c\/p\u003e\n\u003cp data-source-line=\"11-11\"\u003ePowered by Caliber 4R38, the watch uses a mechanical automatic movement with manual winding, offering approximately 41 hours of power reserve, 24 jewels, and a stop-seconds function. With 10 bar water resistance, Hardlex crystal, and a stainless steel bracelet, it combines practical daily durability with the tactile charm and visual interest of a traditional mechanical watch.\u003c\/p\u003e\n\u003cp data-source-line=\"13-13\"\u003eDesigned for buyers who want a more expressive alternative to a standard quartz dress watch, the HFB001J offers balanced comfort, clear styling, and reliable everyday wearability. Within the SEIKO SELECTION lineup, it stands out as a Japan-made open-heart model that blends accessible mechanical value with a classic white-dial presentation.\u003c\/p\u003e\n\u003ch2 data-source-line=\"15-15\"\u003eKey Specifications\u003c\/h2\u003e\n\u003cul data-source-line=\"17-31\"\u003e\n\u003cli data-source-line=\"17-17\"\u003eCase: 46.2 × 40.0 × 11.8 mm, 140.0 g, stainless steel case\u003c\/li\u003e\n\u003cli data-source-line=\"18-18\"\u003eBand: Stainless steel bracelet, one-push three-fold clasp\u003c\/li\u003e\n\u003cli data-source-line=\"19-19\"\u003eWater resistance: 10 bar\u003c\/li\u003e\n\u003cli data-source-line=\"20-20\"\u003eMovement: Caliber 4R38, mechanical automatic with manual winding\u003c\/li\u003e\n\u003cli data-source-line=\"21-21\"\u003ePower: Automatic, approximately 41 hours power reserve\u003c\/li\u003e\n\u003cli data-source-line=\"22-22\"\u003eAccuracy: +45 to -35 seconds per day\u003c\/li\u003e\n\u003cli data-source-line=\"23-23\"\u003eDisplay: Analog, white dial\u003c\/li\u003e\n\u003cli data-source-line=\"24-24\"\u003eFunctions: 3-hand display, open-heart display, stop-seconds function\u003c\/li\u003e\n\u003cli data-source-line=\"25-25\"\u003eSpecial features: 24 jewels, antimagnetic\u003c\/li\u003e\n\u003cli data-source-line=\"26-26\"\u003eGlass: Hardlex\u003c\/li\u003e\n\u003cli data-source-line=\"27-27\"\u003eOrigin: Japan Domestic Market (JDM)\u003c\/li\u003e\n\u003cli data-source-line=\"28-28\"\u003eMade in Japan: Confirmed\u003c\/li\u003e\n\u003cli data-source-line=\"29-29\"\u003eModel Code: HFB001J\u003c\/li\u003e\n\u003cli data-source-line=\"30-31\"\u003eJAN: 4954628473844\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-source-line=\"32-32\"\u003eKey Highlights\u003c\/h2\u003e\n\u003cp data-source-line=\"34-34\"\u003eThe HFB001J stands out through its white open-heart dial, giving it a cleaner and more classic expression than darker mechanical models. The bright dial color keeps the overall design fresh and versatile, while the open-heart layout adds visible mechanical appeal without making the watch feel overly technical.\u003c\/p\u003e\n\u003cp data-source-line=\"36-36\"\u003eIts 4R38 automatic movement gives the watch authentic mechanical identity with hand-winding capability and dependable everyday usability. Rather than being positioned like a convenience-focused quartz model, this watch works best as an approachable introduction to genuine Japanese mechanical watchmaking.\u003c\/p\u003e\n\u003cp data-source-line=\"38-38\"\u003eOn the wrist, the 40 mm case gives the watch a balanced men’s size that feels easy to wear across casual, business-casual, and more polished settings. The stainless steel bracelet and white dial combination also make it especially suitable for buyers who want a mechanical watch with a neat and refined everyday look.\u003c\/p\u003e\n\u003cp data-source-line=\"40-40\"\u003eWithin the SEIKO SELECTION S Series, the HFB001J is a strong JDM option for buyers seeking a Japan-made men’s automatic watch with an open-heart dial, classic white styling, and solid entry-level mechanical appeal.\u003c\/p\u003e","brand":"SEIKO","offers":[{"title":"Default Title","offer_id":48641468367103,"sku":"HFB001J","price":42500.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/0561\/5871\/files\/hfb001j_1.jpg?v=1780865599","url":"https:\/\/japanheartfulstore.com\/products\/seiko-selection-hfb001j-jdm-open-heart-white-automatic-mens-watch-japan-made","provider":"Japan Heartful Store","version":"1.0","type":"link"}