This is a vintage Felsa "Bidynator" automatic watch movement, likely from the Felsa 4000 calibre family dating back to the 1950s. The movement features a bidirectional automatic winding rotor, a signature design of Felsa's "Bidynator" series. It typically includes 25 jewels and shock protection, such as an Incabloc system. These movements were widely used in various Swiss watches during that era. I have tried to look for Caliber number but cannot locate it. Movement not working. Selling for parts/repairs Info welcome Please view pictures carefully as they form part of the description Reference: B3
