When it comes to watches, watch enthusiasts instantly start thinking about the watch’s mechanics and movement. A series of different components and accessories starts revolving around their brain, such as watch mainspring, gear train, escapement, watch crystal, watch dial, watch hand, and others. But you know what, there is another small component often missed in a watch family, that is a watch coil. This component specifically belongs to quartz watches and timepieces. It has a leading role to keep the watch operations accurate.
Today’s guide is dedicated specifically to the watch coil. How does a watch coil work? What are the known types of watch coils? What are the pros and cons of a watch coil? At the end, the watch enthusiasts will be able to understand everything about a watch coil.
A watch coil is a small but essential component in quartz watches. Its primary function is to create a connection between the battery and the stepper motor, ensuring the continuous operation of the watch.
The coil is made of ultra-fine copper wire, wound tightly into a circular or oval shape. When electric current flows through it, the coil generates a magnetic field that drives the stepper motor. This, in turn, moves the watch hands to accurately display the time.
In essence, the watch coil is the electromagnetic bridge that converts electrical energy from the battery into mechanical movement.
These watch coils are the commonly used coils found in normal quartz watches. If we talk about the manufacturing material and operational mechanism, these are made of copper material and work in connection with a step motor. Standard watch coils are known for energy efficiency and extending battery life.
High-frequency coils are designed to function where there is a need for higher oscillation. These types of watch coils can bear a high instant electrical pulse ratio and generate a sufficient magnetic field in return. High-frequency coils are compatible with standard material quality to maintain accurate performance.
A kind of advanced watch coil compatible with modern technology watches. It further includes sub-types like induction, hybrid, and custom coils. Similarly, these coils are used in smartwatches, hybrid watches, and luxury watches. Some of these coils are manufactured using silver-plated copper/gold coatings to enhance conductivity.
Following is the step-by-step process of how a watch coil works in actuality.
Well, here the batteries contribute to delivering the required electrical energy to the quartz crystal. An Integrated Circuit (IC) helps to supply this energy.
Here in the oscillation phase, the quartz crystal creates vibrations or oscillates at a specific frequency of 32,768 times per second. These vibrations create electrical pulses.
In this phase of operation, the created electrical pulses are transferred to the coil to create the magnetic field. Similarly, the IC assists in the transfer of pulses.
In this step of the coil working mechanism, the magnetic field interacts with the stepper motor to power up the watch’s functionality. The motor rotates in a fixed ratio to maintain accuracy.
Here in the final phase of operation, the motor rotation creates a link with the gear series, and the movement to other components takes place. It starts operating or showing time as required.
Usually, there is no inclusion of a watch coil in mechanical watches, as their functionality is based on a balance wheel or hairspring. People often get confused between the watch coil and the balance wheel (hair spring). Their domains belong to different categories, such as electric and non-electric.
But you know what? Some advanced watches, like hybrid and other advanced mechanical watches, may have a watch coil. Apart from this, ultimately, both types of watch movements show time, which is their core purpose.
Whether you know or don’t know much about this tiny component called “watch coil”. But in reality, the entire operation of a quartz watch relies on this component. Leading the responsibility of acting as a bridge between the battery and the stepper motor. It assures time accuracy, low energy consumption, and reliable performance. There are multiple types of watch coils as per the required standard, even to meet the demands of advanced watches. Follow some precautionary measures, such as magnet interaction, moisture, and water, to ensure the safe and smooth operation of the watch coil.
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A: A watch coil can serve you for more than a decade if maintained accordingly.
A: It’s very rare to see a watch coil being repaired. Most of the time, it gets replaced.
A: Yes, but it is not generally recommended because it requires professional skills to play with a watch coil.