{"product_id":"seiko-prospex-alpinist-sbdc209-spb505-mens-watch","title":"Seiko Prospex Alpinist SBDC209 (SPB505) Men's Watch","description":"\u003cp\u003eThe Seiko SBDC209 (internationally designated as the SPB505 \/ SPB505J1) is an elite, high-performance Japanese automatic mechanical field and mountain sports timepiece from Seiko’s celebrated Prospex Land Collection. Celebrated worldwide among horology purists, outdoor mountaineers, and luxury tool watch collectors by its legendary series nicknames—the \"Alpinist\", \"Modern Alpinist\", or \"Black Alpinist\"—this 39.5mm watch carries forward one of Seiko’s most storied tool watch lineages, originally created in 1959 for Japanese mountain climbers (\u003ci\u003eYama-otoko\u003c\/i\u003e). It pairs a solid stainless steel case treated with Seiko’s proprietary super-hard DiaShield coating with a commanding matte black dial, high-visibility LumiBrite geometric indices and Arabic numerals, signature cathedral-style hands, an internal rotating compass ring operated by a dedicated secondary crown at 4 o'clock, a framed date calendar window, an in-house Japanese automatic mechanical movement, a scratch-resistant sapphire crystal, a certified 200-meter water resistance rating, and a solid stainless steel construction. Engineered for rugged wilderness exploration and refined professional everyday wear, it represents an exceptional fusion of alpine heritage, expedition-grade utility, and modern mechanical precision. The defining visual signature of this SBDC209 \/ SPB505 reference is its ultra-legible black dial face, framed by an internal bidirectional rotating compass chapter ring that allows outdoor navigators to easily determine compass headings using the sun's position. Set beneath a premium flat scratch-resistant sapphire crystal treated with an anti-reflective coating on the inner surface, the dial features bold applied hour markers and classic faceted cathedral hands generously filled with Seiko's proprietary LumiBrite compound, ensuring immediate, long-lasting luminescence in low-light environments and dense wilderness canopies. The harmonic contrast between the deep black dial, polished case bevels, circular brushed lug surfaces, dual crown architecture, and high-grade stainless steel casing delivers a purposeful, rugged, and distinguished presence on the wrist. Beneath its rugged exterior, the watch is powered by Seiko’s high-performance in-house Caliber 6R55 automatic mechanical movement. Built with advanced self-winding mechanical architecture, the movement is equipped with manual hand-winding capability and second-hand hacking (stop-seconds) functionality for down-to-the-second time synchronization. Operating at 21,600 vibrations per hour (3 Hz) across 24 jewels, the Caliber 6R55 delivers an extended 3-day (72-hour) power reserve, allowing the timepiece to be taken off over an entire weekend and remain fully wound, running, and accurate on Monday morning. The case is crafted with classic Alpinist field proportions, measuring 39.5mm in case diameter with a profile thickness of approximately 12.5mm, an ergonomic lug-to-lug distance of 46.4mm, and a 20mm lug width, ensuring a well-proportioned, comfortable, and flush fit across diverse wrist sizes. To safeguard against scratches and trail abrasions, both the solid stainless steel case and bracelet are treated with Seiko’s proprietary super-hard DiaShield coating. Engineered for demanding outdoor excursions and aquatic environments, the case incorporates a solid screw-down primary crown at 3 o'clock with protective case shoulders, a specialized compass-adjustment crown at 4 o'clock, and an exhibition see-through caseback showcasing the mechanical caliber, achieving an impressive 200-meter (20 bar \/ 20 ATM \/ 660 ft) water resistance rating suitable for everyday wear, swimming, snorkeling, and high-impact outdoor recreation. The timepiece comes completed on an integrated multi-link solid stainless steel construction, secured by a solid three-fold deployment clasp with a dual push-button release.\u003c\/p\u003e","brand":"MonaWatch","offers":[{"title":"Default Title","offer_id":54029068861754,"sku":"SBDC209","price":3865.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/5858\/3354\/files\/NewProject_8691d866-0ac7-449b-a02a-dcdda12113f2.webp?v=1788860611","url":"https:\/\/www.monawatch.com\/products\/seiko-prospex-alpinist-sbdc209-spb505-mens-watch","provider":"MonaWatch","version":"1.0","type":"link"}