Here is the list of movements based on the Unitas 6497 calibre. It is a size 16" 1/2. It is widely known and used in many models and shared by many watch brands.
New design in the works: the 6497 S Brake, inspired by a motorcycle brake.
New skeleton design project for calibre 6497: Boat wheel.
Skeleton based Unitas caliber 6497 having decentered rays.
Skeleton based on the calibre Unitas 6497 looking like turnig blades.