47+ Omega Speedmaster Professional 1861 Movement US. Brief history of omega speedmaster moonwatch movement evolution. A standard speedmaster professional model with plexiglas crystal, solid caseback with.
Therefore, omega equips models powered by this movement with a transparent case back so you can admire its beauty in action.
Safe favorite watches & buy your dream watch. The speedmaster is a wristwatch with chronograph function, which was put on the market in 1957 and was then equipped with the manual winding movement 27 chro of 1942. The movement on omega speedmaster professional. A standard speedmaster professional model with plexiglas crystal, solid caseback with.