Small, precisely shaped hard stones incorporated within the movement of timekeeping devices serve a functional purpose related to friction reduction. These components, typically synthetic rubies or sapphires, are strategically positioned at critical points where moving parts interact. Their purpose is to minimize wear and tear, thereby extending the operational lifespan and enhancing the precision of the mechanical assembly. For instance, these elements can be found supporting the delicate balance wheel pivots or within the escapement mechanism where controlled release of power occurs.
The implementation of these hard stones in timepieces contributes significantly to their longevity and accuracy. By providing smooth, low-friction surfaces, they reduce energy loss and minimize the impact of wear on critical components. This practice also has historical significance, dating back to the 18th century as watchmakers sought to improve the reliability of their intricate mechanisms. Their presence is often considered an indicator of quality and craftsmanship.
