How does quartz provide watch power?

Answer 1

Automatic quartz is a collective term describing watch movements that combine a self-winding rotor mechanism used in "automatic" mechanical watches to generate electricity with a piezoelectric quartz crystal as its timing element.

A rotating pendulum inside the case is attached to a relatively large gear which meshes with a very small pinion. As the wearer moves, the pendulum turns and spins the pinion at a very high speed - up to 100,000 rpm. This is coupled to a miniature electrical generator which charges three of four small capacitors. If the watch is left unused the capacitors can store enough charge to power the watch for longer periods, usually at least one month, six months for most models. Charge from the capacitor drives a conventional quartz watch mechanism accurate to 1-2 seconds per week.

Answer 2

It doesn't really supply the power to the watch, the battery does that. What the quartz does, is replace the watch timing gears. An electrical impulse causes the quartz to vibrate and those vibrations are consistent and can be measured. With an spring driven watch, the timing gears were weighted (with jewels) to keep it moving at a precise rate.

Answer 3

Quartz is able to act as an oscillator (not a power source) in a watch because it's a piezoelectric crystal. The Wikipedia links below might be informative:

Answer 4

"In most quartz watches, it comes from a battery.

Some quartz watches, however, get their electricity from a mini electrical generator incorporated into the watch movement. The generator is powered by the movement of the wearer's wrist, which causes a rotor to spin rapidly. These watches are sold by the Japanese company Seiko under the name "Kinetic" and by the Swiss manufacturer SMH under a variety of names including "Autoquartz" and "Omegamatic." Japan's Citizen Watch Co. supplies its own version of these watches- called Mecaquartz- through its private-label division.

Still other quartz watches get their electricity from light. The light is transformed into electrical power by a solar cell underneath the watch dial and stored in a capacitor. Citizen sells light-powered watches under the "Eco-Drive" label, while Seiko's Pulsar brand markets theirs under the name "Pulsar Solar." "

Answer 5

When the quartz is provided with an electir charge it vibrates at a very reliable frequency which is then converted to a timekeeping device

Answer 6

You can check this link for your answer.
http://electronics.howstuffworks.com/quartz-watch1.htm
It will help you understand the mechanism of a quartz watch