Silicon has become a key innovation in modern mechanical watchmaking, especially in the balance spring that regulates a movement’s rhythm. Its lightness, anti-magnetic properties, and stability under temperature changes help maintain precise oscillation in everyday conditions. In Certina’s A05 movement (also known as Valjoux), the silicon spring works alongside a 4 Hz frequency and a power reserve of up to 65 hours. This combination limits the disturbances caused by shocks and magnetic exposure, allowing the movement to sustain its accuracy day after day. By integrating silicon technology into selected automatic movements, Certina ensures long-term stability and watches with a confident, reliable pace in real-world use.
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