Caliber Felsa 4007 N
Original historical movement from 50's
Limited edition 11 pcs only
The wait has come to an end! Almost 70 years after its invention, DuBois et fils is bringing back the first automatic movement with a double-sided winding rotor – the Bidynator – in its authentic form.
These new models feature pioneering Bidynator movements from FELSA using the original 4007 N crafted in the 50s. DuBois et fils offers these valuable eyewitnesses of the Swiss watch industry accessible to each and every one who appreciates high-quality craft and beauty. The works have been meticulously and expertly disassembled, cleaned, checked, oiled and carefully regulated. The result: The Bidynator 4007 N plant has no need to shy away from comparison with today's automatic movements.
Unlike today, in the midst of the last century, small clockwork manufacturers in particular dominated the Swiss watch market. They continuously improved the quality of the works and developed new functions. Their innovations influenced the products of the big watch brands for decades.
Among the great innovators of the 40s and 50s was Friedrich Meyer. In 1942 he developed the first automatic movement with a double-sided winding rotor at the clockwork company FELSA in Grenchen. Under the name "Bidynator" it conquered the Swiss watch industry.