All PREFAG movements have been used
for decades in most critical physical environments like:
Aviation Helicopters Civil and commercial jets Propeller aircrafts Commercial / military supersonic flight equipment Ship applications (vibration and shock) Railroad (repetitive bumps) Textile machinery (extremely high vibration)
For these high-end applications all our movements are equipped with: Spring-backed sapphire jewels Top quality tungsten carbide pivots
For non-vibration sensitive pointers: Copper coil formers for high damping are available Mechanical self-centering pivot holding system,for best alignment and avoidance of adhesion
PREFAG zero adjustment for a play-free self-locking
jewel screw positioning without counternut or adding adhesive PREFAG welded hair springs for controlled torque and secure hair spring position, to avoid the overheating of the springs and a changed hysteresis