You are looking at an incredible piece of jewelry put together by skilled watchmakers from the Czech Republic. This specific piece is called "Tycho de Brahe" and you can customize every single part of it. It comes with automatic movement ETA Caliber 77.51 and is made out of damascus steel, extremely rare material used to make high-end knives. Currently there are approximately 4 companies in the entire world who make watches out of this material. Contact us for more questions.