OMEGA Seamaster Railmaster

The Omega Seamaster Railmaster, reference 235.12.38.20.13.001, has a 38 mm steel case. The case is 12.36 mm thick and measures 44.92 mm lug to lug. The movement is the self-winding Omega calibre 8804, with a Co-Axial escapement and a silicon balance spring. The calibre is a certified Master Chronometer, approved by METAS and resistant to magnetic fields reaching 15,000 gauss, with a power reserve of 55 hours. A domed sapphire crystal with anti-reflective treatment on both sides covers the brown dial. The dial has a small seconds display at 6 o'clock. Omega rates the case to 150 metres. The display back shows the movement, and the watch is fitted with a leather strap.