Clean Factory has updated this watch many times. Currently, there are v2+, and v3 versions on the market. Some people think that v3 is the best version. I am not sure whether v3 is the same as the latest genuine product, but v2+ is exactly the same as the genuin km2. I have seen the original km2, and v2+ is exactly the same as it. The main difference between the v2+ and v3 versions is the color of the bezel. The red part of the v3 is closer to cherry red. Under ultraviolet light, the blue part of the v3 version is more likely to turn red.
