Breguet 583Q/1

Self-winding flyback chronograph movement, numbered and signed Breguet. 13¾ lignes. Features 18-carat gold engine-turned rotor (two-tone black/rhodiumed). Inverted in-line lever escapement with silicon pallets. Annular balance on a flat spring. Balance frequency 4Hz. Adjusted in six positions. Central chronograph seconds and minutes counter with date at 6 o'clock. Used in the Breguet Marine Chronograph collection.