In 1994 Girard-Perregaux introduces the 3000 family of ultra-thin self-winding movements. They are available in two calibres 10“'1/2 (23.30 mm) and 11”'1/2 (25.60 mm). The height varies depending on the version. These two powerful and reliable calibres also serve as a base for various complications of Girard-Perregaux.
Ball bearings in ceramic
- The oil could stick together during prolonged storage. Oil ages, so the ball bearings must be lubricated anew regularly.
- The aging process and wear of the bearings is accelerated by a lack of lubrication.
- Particle production can lead to contamination of the movement.
- Risk of corrosion on contact between the bearing and balls.
To prevent these problems, Girard-Perregaux, in collaboration with a supplier, has developed ceramic ball bearings, which eliminate any lubrication and increase the efficiency of the movement.