Bamboo army glass

I just bought a Blue Tang Underwater Kinetics dive knife and the blade says 420 ss instead of hydralloy. Fake? - underwater kinetics flashlights

I bought the knife in a reputable dive shop in Austin, TX, and I walked out the door of the box and papers. 420SS wrote the paper instead of "H" for hydralloy and leaf shape of all, what you find on the Internet or in the Underwater Kinetics website differently. The leaf shape is generally as follows: http://cooksden.com/wp-content/uploads/2008/10/B000KLZ4QY.jpg
Let me know if you think it is wrong and should try to make them.