balance wheel
The Balance Wheel: The Oscillating Heart That Keeps Mechanical Time
Every mechanical watch on your wrist owes its accuracy to a single spinning disc no wider than a shirt button. It swings back and forth several times a second, day and night, for years on end — a...
The Hairspring: Watchmaking's Most Important 0.05-Gram Component
Inside every mechanical watch, a microscopic coil of metal — thinner than a human hair, lighter than a grain of rice — flexes thousands of times an hour to make time itself measurable. It is call...
