Movement: Omega Haima series adopts Omega's Zhizhen Observatory movement, which has passed the exquisite industry certification standard approved by Swiss Federal Metrology Institute and has strong anti-magnetic performance. World Portuguese series adopts self-made movement with excellent performance. For example, the 520 10 movement provides 60-hour power reserve.

Design: Omega Haima series is more fashionable and sporty, and has a strong tough temperament, which is suitable for all kinds of clothes. Universal Portuguese series is mainly classic, atmospheric and business style, which is only suitable for formal wear.