View Omega 1861 Speedmaster US. View and download omega 1861a technical manual online. While chronographs have been around since the late 1800s, omega first introduced this line of chronographs in 1957.
This movement is based on a lemania 1873 and has been refined by omega.
While chronographs have been around since the late 1800s, omega first introduced this line of chronographs in 1957. Omega speedmaster professional 145.0022 swiss caliber 1861 manual wind speedy. T swiss t with yellowed markers. Omega dial quadrante speedmaster vintage 861 professional.