{"product_id":"seiko-prospex-black-alpinist-gmt-hbc009j-mens-watch","title":"Seiko Prospex Black Alpinist GMT HBC009J Men's Watch","description":"\u003cp data-path-to-node=\"6\" id=\"p-rc_37670011b858ffaf-649\"\u003eThe Seiko Prospex HBC009J (also designated across international and Japanese domestic catalogs as the HBC009 within the core Prospex Land Alpinist collection) is an elite, high-performance Japanese automatic mechanical field GMT timepiece from Seiko’s celebrated land-exploration heritage. Directly descending from Seiko’s landmark 1959 \"Laurel Alpinist\"—the brand’s first dedicated sports watch engineered specifically for Japanese mountaineers (\u003ci data-path-to-node=\"6\" data-index-in-node=\"447\"\u003eYama-otoko\u003c\/i\u003e)—this modern reference combines mechanical dual-time GMT functionality with the rugged mountaineering DNA that defined an era. \u003cspan class=\"citation-2218\"\u003eAcross horological circles, collector forums, and adventure watch communities, it has earned defining community nicknames—the \u003c\/span\u003e\u003cspan class=\"citation-2218\"\u003e\"Black Alpinist GMT\"\u003c\/span\u003e\u003cspan class=\"citation-2218\"\u003e, \u003c\/span\u003e\u003cspan class=\"citation-2218\"\u003e\"Alpinist 3 Days\"\u003c\/span\u003e\u003cspan class=\"citation-2218\"\u003e, \u003c\/span\u003e\u003cspan class=\"citation-2218\"\u003e\"Field GMT\"\u003c\/span\u003e\u003cspan class=\"citation-2218\"\u003e, \u003c\/span\u003e\u003cspan class=\"citation-2218\"\u003e\"Shadow Alpinist\"\u003c\/span\u003e\u003cspan class=\"citation-2218\"\u003e, \u003c\/span\u003e\u003cspan class=\"citation-2218\"\u003e\"Black Alpinist\"\u003c\/span\u003e\u003cspan class=\"citation-2218\"\u003e, or \u003c\/span\u003e\u003cspan class=\"citation-2218\"\u003e\"Core Shop Alpinist\"\u003c\/span\u003e\u003cspan class=\"citation-2218 citation-end-2218\"\u003e—for its rich radial sunburst black dial, matching black calfskin leather strap, fixed hairline-brushed 24-hour steel bezel, internal rotating compass ring, and upgraded 72-hour power reserve GMT caliber.\u003csup class=\"superscript\" data-turn-source-index=\"1\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-2217 citation-end-2217\"\u003eIt unites a sculpted 316L solid stainless steel case treated with Seiko’s DiaShield super-hard coating in a versatile 39.5mm diameter with a deep black dial face, faceted applied hour markers, traditional cathedral hands, a high-contrast red-tipped 24-hour GMT hand, an in-house Japanese automatic GMT mechanical movement, a curved anti-reflective sapphire crystal, certified 20-bar water resistance, and an integrated black calfskin leather strap construction.\u003csup class=\"superscript\" data-turn-source-index=\"2\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e Perfectly calibrated for gentlemen seeking an authentic, adventure-proven mechanical GMT field watch that transitions effortlessly from alpine trails and international flights to corporate boardrooms and refined evening occasions. \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003eThe defining visual centerpiece of this HBC009J reference is its versatile, finely textured sunburst black dial face. Finished with an ultra-fine radial brushing technique, the surface shifts dynamically under changing light between pitch black and deep charcoal grey. \u003cspan class=\"citation-2216 citation-end-2216\"\u003eEmbracing historic Alpinist styling cues, the dial features three-dimensional applied wedge-shaped markers interspersed with bold Arabic numerals at 12, 3, 6, and 9 o'clock arranged across a balanced crossline axis for instantaneous orientation.\u003csup class=\"superscript\" data-turn-source-index=\"3\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e Vintage-style cathedral hour and minute hands glide over the dial alongside a slender sweep seconds hand, while a vibrant red-tipped 24-hour GMT pointer indicates a secondary time zone against the perimeter 24-hour scale. Generous coatings of Seiko’s proprietary LumiBrite compound on the hands and cardinal indices deliver vivid, long-lasting green luminescence in low-light and nighttime conditions. A discreet calendar date window is placed at 4:30, preserving the visual harmony of all four primary cardinal markers. Framing the outer edge of the dial is an internal rotating compass ring operated smoothly via a dedicated secondary crown at 4 o'clock, allowing wearers to easily calculate directional bearings using the position of the sun and the 24-hour GMT hand. \u003cspan class=\"citation-2215 citation-end-2215\"\u003eEncircling the display is a fixed solid stainless steel bezel with a vertical hairline satin finish and engraved black 24-hour numerals.\u003csup class=\"superscript\" data-turn-source-index=\"4\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003eBeneath its tailored exterior, the watch is driven by Seiko’s high-grade in-house Calibre 6R54 Japanese automatic mechanical GMT movement, engineered and manufactured at Seiko’s dedicated horological facilities in Japan. \u003cspan class=\"citation-2214\"\u003eOperating at a frequency of 21,600 vibrations per hour (3 Hz), this 24-jewel self-winding movement delivers a substantial \u003c\/span\u003e\u003cspan class=\"citation-2214\"\u003e72-hour (3 full days) power reserve\u003c\/span\u003e\u003cspan class=\"citation-2214 citation-end-2214\"\u003e on a full wind, allowing the watch to be set aside over the weekend and picked up Monday morning keeping accurate time.\u003csup class=\"superscript\" data-turn-source-index=\"5\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-2213 citation-end-2213\"\u003eThe movement features an independently adjustable 24-hour GMT hand for tracking international time zones, automatic self-winding, manual hand-winding capabilities, and a hacking seconds (stop-seconds) mechanism for down-to-the-second synchronization.\u003csup class=\"superscript\" data-turn-source-index=\"6\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-2212\"\u003eBuilt with Seiko’s proprietary Diashock shock-absorbing system, the caliber delivers a factory precision rating of \u003c\/span\u003e\u003cspan class=\"citation-2212\"\u003e+25 to -15 seconds per day\u003c\/span\u003e\u003cspan class=\"citation-2212\"\u003e and incorporates robust \u003c\/span\u003e\u003cspan class=\"citation-2212\"\u003eJIS Class 1 magnetic resistance (4,800 A\/m)\u003c\/span\u003e\u003cspan class=\"citation-2212 citation-end-2212\"\u003e, protecting timekeeping stability against daily electromagnetic exposure from mobile devices and laptops.\u003csup class=\"superscript\" data-turn-source-index=\"7\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-2211\"\u003eThe case is engineered with classic, versatile midsize field proportions, measuring an official \u003c\/span\u003e\u003cspan class=\"citation-2211\"\u003e39.5mm in case diameter\u003c\/span\u003e\u003cspan class=\"citation-2211\"\u003e with a case profile thickness of \u003c\/span\u003e\u003cspan class=\"citation-2211\"\u003e13.6mm\u003c\/span\u003e\u003cspan class=\"citation-2211\"\u003e, a compact \u003c\/span\u003e\u003cspan class=\"citation-2211\"\u003e46.4mm lug-to-lug distance\u003c\/span\u003e\u003cspan class=\"citation-2211\"\u003e, and a standard \u003c\/span\u003e\u003cspan class=\"citation-2211\"\u003e20mm lug spacing\u003c\/span\u003e\u003cspan class=\"citation-2211 citation-end-2211\"\u003e.\u003csup class=\"superscript\" data-turn-source-index=\"8\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e The solid 316L stainless steel case architecture pairs vertical satin brushing across the lug hoods with mirror-polished case flanks and bevels. Both the case and bezel are shielded with DiaShield (super-hard coating), significantly increasing surface hardness to resist scratches and daily abrasions. \u003cspan class=\"citation-2210\"\u003eDial protection is provided by a premium \u003c\/span\u003e\u003cspan class=\"citation-2210\"\u003ecurved sapphire crystal treated with an anti-reflective (AR) coating on the inner surface\u003c\/span\u003e\u003cspan class=\"citation-2210 citation-end-2210\"\u003e, ensuring crystal-clear readability and scratch resistance.\u003csup class=\"superscript\" data-turn-source-index=\"9\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-2209\"\u003eBuilt for demanding outdoor exploration, the watch incorporates a main screw-lock crown at 3 o'clock and an exhibition see-through screw-down caseback that allows the wearer to view the decorated movement, perlage accents, and engraved rotor while securing an impressive \u003c\/span\u003e\u003cspan class=\"citation-2209\"\u003e20-bar (200 meters \/ 660 ft) water resistance rating\u003c\/span\u003e\u003cspan class=\"citation-2209 citation-end-2209\"\u003e.\u003csup class=\"superscript\" data-turn-source-index=\"10\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-2208 citation-end-2208\"\u003eThe timepiece comes completed on an integrated genuine black calfskin leather strap with subtle tone-on-tone stitching, secured by a solid stainless steel one-push three-fold deployment clasp with a dual push-button safety release.\u003csup class=\"superscript\" data-turn-source-index=\"11\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"MonaWatch","offers":[{"title":"Default Title","offer_id":67692424364346,"sku":"HBC009J","price":4790.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/5858\/3354\/files\/NewProject_2bebd362-f24a-40b9-89bc-2afc16800e6e.webp?v=1791920598","url":"https:\/\/www.monawatch.com\/products\/seiko-prospex-black-alpinist-gmt-hbc009j-mens-watch","provider":"MonaWatch","version":"1.0","type":"link"}