Here are the three Executive Tourbillon Free Wheel Limited to 18 pieces each: From left to right: Osmium in white gold, Aventurine, Carbonium and Straw in rose gold. Osmium: Which is my favorite. The Aventurine, now: The Carbonium: And the Straw: 44 mm ca...
can be easily read on Wikipedia It was discovered in left-over residue from extracting platinum. A fascinating material and relatively inexpensive despite being the rarest stable element — because “what the heck can you do with it”? (Answer - make watch ...