The official synchronization also has a higher quality Omega racing chronograph SPEEDMASTE

The official synchronization also has a higher quality Omega racing chronograph SPEEDMASTER, which uses the 7750 modified Omega 9900 chronograph movement. The steel is made of imported AISI316L special steel and hardened, so the hardness reaches 240HV. You can see the sand pattern on the case. Clear, delicate, white, without pores, perfectly created to restore the original material. 2. Transparent arc-shaped sapphire crystal glass mirror, and the dial is more prominent. 3. Matte dial with platinum-plated nails. The luminous light is made of imported super luminous powder. 4. Speedmaster Moon series with exquisite The steel watch strap, imported cowhide leather strap, and ceramic ring can be interchanged with the original versions. We may never be able to go into space, but we can at least own an Omega moon watch in our lifetime. Please look for exclusive quality