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The small family business has developed steadily over the years, and currently employs nearly 30 personnel, in particular several highly-trained automatic setters or “décolleteurs” The company today produces a wide range of turned parts and pinions for the watch manufacturing sector.
For strategic reasons – to expand both its profile-turning capacities and its expertise – Ronda acquired its long-standing partner and supplier in 2007. This latest addition to the Ronda Group is now domiciled in Court (in Canton Jura), and is led by Serge Zwahlen, co-founder Gérard’s son.
Precision turning and top technology
Zwahlen SA uses state-of-the-art technology, be it in calculating, cam milling or conducting quality assurance checks.
The company’s core competencies include the production of pinions for watch movements – such as cannon pinions, centre tubes and centre pinions – with drillings of 0.15 to 3.00 mm diameter.