Regulation
This work step is always exhilarating: the regulation system, which consists of the balance bridge and balance wheel, is inserted into the caliber. At this moment, the movement comes to life—and begins to tick. And it is now allowed to do this for a day, to settle in. It is then tested and fine-tuned in six different positions for a week. Precision requires quality, experience, and time.
Once the regulation system is in place, it becomes clear whether all the movement parts work together as they should and if energy is transported through the gear train as optimally as it could be.
The end curve is often used to quickly adjust the pace of the watch, because the frequency—which is the oscillation of the balance wheel—can be influenced by changing the effective length of the balance spring. To ensure that this happens reliably and in even steps, the end curve must have a perfect radius to the center point. This requires a keen eye, a steady hand, and a great deal of experience.
Once fully assembled, NOMOS calibers must prove their accuracy in all positions.
We place each movement on the watch timegrapher. It uses a powerful microphone to record the ticking sound and analyzes whether it oscillates at the ideal frequency.