[OMEGA Watches] OM's new OMG Speedmaster Snoopy Award 50th Anniversary Commemorative Watch Domineering Debut [Professional Moon Watch] [Case] The back of the case adopts NAIAD locking technology The buckle logo is more retro Case size 42mm with black ceramic bezel The movement adopts the classic manually wound chronograph movement 1863. Only after playing with the manual chronograph movement is complete OM boutique with unique ingenuity