Housed in a round 40mm stainless steel case, the Railmaster presents a grey dial protected by a scratch-resistant sapphire crystal. A fixed bezel, solid case back, and screw-in crown complete the purposeful construction, while water resistance reaches 150 metres / 500 feet.
Power comes from an automatic Co-Axial Master Chronometer movement that holds COSC certification, reflecting a high standard of regulated accuracy. The 20mm lug width accommodates the included brown calfskin leather strap in a NATO style, secured by a tang buckle.
Reference 220.12.40.20.06.001 carries the Railmaster's heritage as a robust, no-nonsense timepiece, balancing understated design with the movement credentials Omega's Master Chronometer designation demands.
