It took one man eight years to conceive and build the Solaria, a double-sided timepiece that includes 41 complications and ...

Innovative watch brand Krayon is at it again with another unique calendar complication that functions as a monthly planner.

The company is known for creating some of the most complicated mechanical watches you can buy. The first Calatrava model was created in 1932, inspired by the minimalist principles of Bauhaus.

More recently though, the Swiss brand has taken steps to change that view by building complicated mechanical watches of its own that are every bit as impressive as some of its luxury peers.