1: The steel material is very delicate and looks almost the same as the genuine one, but I'm not sure if it's 904L steel, but it doesn't matter.
2: The logistics and transportation are a bit slow, probably because the product is special, but finally arrived safely in Las Vegas, USA. (about 10 days)
3: Next time, I will disassemble its back cover to check its movement! (The boss said the Swiss movement)
4: In the end it should weigh 3g heavier than the original, but it's already pretty good.