Omega OMEGA OB2 racing chronograph [SPEEDMASTER] uses a modified Omega chronograph movement. [1] The steel is made of imported AISI316L special steel and hardened, so the hardness reaches 240HV. The sand lines you see on the case are clear, delicate and white. There are no pores to perfectly restore the same material as the original product [2] The transparent arc-shaped sapphire crystal glass mirror makes the dial more prominent [3] The matte dial is equipped with platinum-plated nails, and the luminous light is made of imported super luminous powder [4] Speedmaster Moon The series is equipped with stainless steel straps and imported cowhide straps. The straps and ceramic rings can be interchanged with the original versions. We may never be able to go to space, but we can have at least one Omega moon watch in our lives. The famous craftsman Swiss Watch exquisitely recommends men’s multi-functional machinery The famous watchmaker Swiss Watch carefully creates ultra-realistic photo shoots for you, Omega