The model DC 57 Si black has a very striking character due to the strong contrast between case and dial. By expanding the silicon components in the timepiece, the watch becomes even more accurate and more resistant to shocks, magnetic fields or gravitational forces. This is because the silicon used by us is lighter and stronger than steel. Silicon shows no signs of fatigue and is particularly temperature stable. Ideal prerequisites for the construction of micrometer-accurate components of high-quality watch movements.