Der DBF006-13 DuBois et fils Bidynator mit braunem Zifferblatt. Eine Swiss Made Limited Edition Uhr aus der Schweiz.

DBF006-13 Bidynator Automatic Movement

42 mm

Caliber Felsa 4007 N 
Original historical movement from 50's
Limited edition 11 pcs only

CHF 5’750.00 incl. VAT
Created with Sketch.
Choose your limited edition number

The return of the Bidynator

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. 

Original Movement from 50's

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.

Technical Details

Case, Dial and Hands

  • Material case: stainless-steel 316L, 5 N rose gold plated
  • Diameter: 42 mm
  • Case height: 12 mm
  • Diameter opening: 36 mm
  • Crystal front and back: box-shaped sapphire crystal with anti-reflection treatment on both sides
  • Water-resistance: 5 ATM
  • Dial: brown with Logo sticker in rose gold
  • Indexes plished steel rose gold plated
  • Hands: skeletonized Dauphine in steel rose gold plated


  • Caliber FELSA 4007 N automatic rose gold
  • Historical movement from 50s
  • Date at 3
  • Caliber: 11.5''', diameter 26 mm
  • Height: 5.6 mm
  • Stones: 25
  • Frequency: 18'000 A/H
  • Power reserve: 42 h
  • Treatment rose gold plated, polished and prushed


  • Hour, minutes and sekunden hands centered, rose gold plated
  • Date positioned at 3

Strap and Buckle

  • Calf leather strap with protective rubber lining
  • Buckle material: stainless steel 316L, 5 N rose gold plated

Operating instructions DBF006

The story of the Bidynator

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.

Bidynator am Handgelenk

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.

DBF006-13 Bidynator von DuBois et fils

Discover More