Practical Balance and Hair-Spring Work

Adjusting the intricate mechanisms of a mechanical watch requires skill and precision. Practical Balance and Hair-Spring Work demystifies the science behind properly adjusting watch balances and hair springs—the beating heart of the mechanical watch.

Learn step-by-step methods for selecting the ideal hair spring, expertly attaching the spring coil, visually identifying and correcting flat and round truing errors, manipulating spring tension and geometry with specialized tweezers, and more.