OMEGA Speedmaster 125 ref. 378.0801 Watch OMEGA Speedmaster 125 ref. 378.0801 Steel bracelet watch. Round case with internal tachometric bezel. Black dial with two sub-dials. Date indication at 3 o'clock. 24-hour time indication at 9 o'clock. Automatic movement. Original steel bracelet with folding clasp signed Omega. Diameter: mm