Year of manufacture of movement: 1962
Complete service and revision
Tokenised and secured by blockchain
Quantity: 66 pieces
The historic Felsa 4017 hand-wound movement, dating from 1962, showcases traditional Swiss watchmaking craftsmanship and timeless technology.
With a central seconds hand and date display, this original calibre hails from the renowned Felsa manufacture in Grenchen. The workshop's innovations, spearheaded by engineer Friedrich Meyer, have had a lasting impact on the modern wristwatch.
The movement is limited to 88 pieces and will in future tick away in the DBF011 – our anniversary watch marking 275 years of watchmaking by DuBois et fils.
A particular highlight of this movement is its hand-blued screws. This traditional technique is used in classical watchmaking to heat the screws to around 300 °C with precision, achieving their characteristic deep blue colour.
Today, only a handful of watchmakers still possess the skills required for this intricate craft. At the DuBois et fils workshop, this historic technique is being deliberately revived: each screw is carefully blued by hand by our watchmaker, lending the movement its unique, traditional character.
Anti-reflective sapphire crystal on the front and back protects the movement and, thanks to the transparent case back, offers a view of its inner workings. With this collection, you can experience Swiss watchmaking every day.
The historic Felsa 4017 is housed in a 42 mm stainless steel case of the DBF011 model.
Since 2020, DuBois et fils has been fitting historic Swiss movements into new watches. Explore the calibres, their origins, and the models in which they are used, whether in current collections or past ones.