Unworn Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer Chronograph 42mm 310.30.42.50.01.002. 42 mm stainless steel. Black dial with 30-minute sub-dial at 3 o’clock, seconds sub-dial at 9 o’clock, 12-hour counter at 6 o’clock. Manual, Swiss Made. Omega Caliber 3861, 26 jewels, power reserve of 50 hours. Stainless steel bracelet with folding buckle.













