Whether it is Luminor 1950 3 Days or Luminor 1950 8 Days GMT, I think the name of Luminor 1950 series is to commerate the launch of the Luminor Watch, which was introduced in 1950. The original intention of Panerai’s foundation is to make a perfect watch that can work normally underwater, even in the deep sea. The design of Panerai is also unique, you can find their watches are very large and give people a strong and secure feeling, this is also the reason that Panerai occupies a certain position in the field of High-End Watches. A small tip for you: attach the crystal glass on your face and feel its temperature, if it is sapphire, it should be much cooler than the mineral crystal. This also can be used a way to identify genuine and fake watches, because general Replica Watches use mineral crystal glass.