Omega Seamaster Railmaster Omega Co-Axial Master Chronometer Watch - 40 mm Steel Case - Vertically Brushed Grey Dial - 220.10.40.20.06.001 Unique 70mm thick

70mm thick

Case and slide piece with hand-guilloched hobnail-patterned decoration

Hand-engraved case

Calibre 2936 hand-wound movement with tourbillon

black inner bezel

Omega Seamaster Railmaster Omega Co-Axial Master Chronometer Watch - 40 mm Steel Case - Vertically Brushed Grey Dial - 220.10.40.20.06.001 Unique 70mm thick40 mm stainless steel case, screw in crown, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, vertically brushed grey dial with brushded stainless steel hands and recess hour markers filled with vintage color Super LumiNova, caliber 8806 self winding Co Axial master chronometer movement, approximately 55 hours of power reserve, stainless steel bracelet. Water resistant to 150 m (500 ft).