The Blancpain L-Evolution Tourbillon is their latest watch in their L-Evolution line. The L-Evolution Tourbillon uses the Blancpain caliber 4225G tourbillon movement with a power reserve of seven days with a date function. The power reserve indicator is located on the actual rotor which is a first in horology. The watch is available with either an eighteen carat gold or stainless steel case with an alligator strap.