The Christiaan van der Klaauw Real Moon Stella Nebula has a dial from ammolite, a gemstone formed from 71 million years old shells
collection Christiaan van der Klaauw Real Moon
collection Christiaan van der Klaauw Real Moon
The moon phase complication of this Christiaan van der Klaauw Real Moon Joure Horizon is so accurate it deviates one day in 11,000 years