Omega Speedmaster Professional 145.022.78

OMEGA Speedmaster Professional

Ref. 145.022.78 Circa 1980 Chronograph with steel bracelet Case: tonneau, tachymetric bezel, signed crown, round pushers, screw-down case back, signed Dial: black 'T SWISS MADE T', painted indices and minute track, baton hands, central chronograph seconds, 30-minute counter at 3 o'clock, 12-hour counter at 6 o'clock, small seconds at 9 o'clock, signed Movement: manual winding mechanical, signed - Caliber 861 No. 44821106 Bracelet/Clasp: steel bracelet with deploying clasp, signed - Ref. 1171/633 Diameter: 42mm Wrist circumference: approximately 17 cm.