Whatever Happened to Winding?
Depending on your age, you may or may not remember seeing your father wind his watch each night before going to bed. If he did not, he would surely wake to a watch that had stopped. Those days became history with the advent of the automatic watch. What makes it automatic? It still has the same basic mechanism to keep the watch working, but how that mechanism is powered changed the way we cared for our watches.
All mechanical watches work in a similar manner. They require a movement of a series of gears to tick of increments of time, which in turn registers as movements of the hands on the face of the watch. A rotor in the watch sits on a staff in the middle of the watchs movement. It rotates in a circular motion and winds the mainspring which is the source of power in mechanical watches. With an automatic watch the winding of this spiral spring is done automatically with any arm or wrist movement.
Self-winding, automatic watches work great for people who wear the watch each day, but if you do not wear the watch frequently, it needs manual winding about twice a week. Even automatic watches will stay working better if they are...