{"product_id":"omega-railmaster-40mm-co-axial-master-220-10-40-20-01-001","title":"Omega Railmaster 40mm Co-Axial Master 220.10.40.20.01.001","description":"\u003ch3 dir=\"auto\"\u003eDescription\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eOmega Seamaster Railmaster Co-Axial Master Chronometer\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eReference:\u003c\/strong\u003e 220.10.40.20.01.001\u003cbr\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Pre-Owned\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Material:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Size:\u003c\/strong\u003e 40mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Thickness:\u003c\/strong\u003e Approx. 12.7mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLug-to-Lug:\u003c\/strong\u003e Approx. 47.9mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLug Width:\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal:\u003c\/strong\u003e Domed Scratch-Resistant Sapphire Crystal with Anti-Reflective Treatment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial:\u003c\/strong\u003e Vertical-Brushed Black Dial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands \u0026amp; Markers:\u003c\/strong\u003e Recessed Hour Markers and Hands Filled with Vintage-Toned Super-LumiNova\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement:\u003c\/strong\u003e Omega Co-Axial Master Chronometer Caliber 8806\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Reserve:\u003c\/strong\u003e Approximately 55 Hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 25,200 vph \/ 3.5 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctions:\u003c\/strong\u003e Hours, Minutes \u0026amp; Central Seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic Resistance:\u003c\/strong\u003e Resistant to Magnetic Fields up to 15,000 Gauss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e METAS-Certified Master Chronometer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Resistance:\u003c\/strong\u003e 150m \/ 500ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown:\u003c\/strong\u003e Screw-In Crown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBracelet:\u003c\/strong\u003e Stainless Steel Bracelet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Back:\u003c\/strong\u003e Solid Stainless Steel with Naiad Lock System and Railmaster Seahorse Medallion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Pre-Owned\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eOmega Seamaster Railmaster 220.10.40.20.01.001\u003c\/strong\u003e is a modern interpretation of one of Omega’s most purpose-driven professional watches. The original Railmaster was introduced in \u003cstrong\u003e1957\u003c\/strong\u003e alongside the Speedmaster and Seamaster 300 and was specifically engineered for scientists, engineers, railway workers, and others who routinely encountered strong magnetic fields. This modern 40mm version preserves the Railmaster’s understated tool-watch character while dramatically advancing its technical capabilities.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eIts vertically brushed black dial deliberately avoids unnecessary ornamentation, with recessed hour markers, a crosshair design, and vintage-toned Super-LumiNova creating a highly legible, instrument-like appearance. Unlike many modern luxury watches, the Railmaster remains intentionally discreet—the appeal lies in its proportions, functionality, and the historical purpose behind its design rather than overt branding.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eInside is the \u003cstrong\u003eOmega Co-Axial Master Chronometer Caliber 8806\u003c\/strong\u003e, offering approximately 55 hours of power reserve and exceptional resistance to magnetic fields reaching \u003cstrong\u003e15,000 gauss\u003c\/strong\u003e. METAS Master Chronometer certification subjects the complete watch to rigorous testing for precision, magnetic resistance, power reserve, and water resistance. This capability is particularly appropriate for the Railmaster, transforming the anti-magnetic concept that defined the original model into a thoroughly modern mechanical watch.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eWith its versatile 40mm stainless steel case, 150 meters of water resistance, steel bracelet, no-date dial, and highly anti-magnetic movement, the Railmaster is an exceptionally capable everyday watch with a direct connection to Omega’s professional-watch heritage. Its understated appearance also makes the discontinued reference 220.10.40.20.01.001 an interesting alternative for collectors seeking something less common than the Speedmaster or Seamaster Diver 300M.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAlexanders Jewelers is located in Columbus, Ohio and has specialized in luxury watches and fine jewelry for over 20 years. We are members of Jewelers of America and the Better Business Bureau with an A+ rating. Every pre-owned luxury timepiece is carefully inspected for authenticity and condition. We offer financing options and accept all major credit cards and wire transfers.\u003c\/p\u003e","brand":"Alexander's Jewelers","offers":[{"title":"Default Title","offer_id":51695599976694,"sku":null,"price":5500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0249\/0889\/0208\/files\/UN-4127_h6a9x7tkrzo_2026-09-15-14-24-23-Photoroom.jpg?v=1789748245","url":"https:\/\/alexanderscolumbus.com\/products\/omega-railmaster-40mm-co-axial-master-220-10-40-20-01-001","provider":"Alexander's Jewelers","version":"1.0","type":"link"}