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Do Automatic Watches Have Batteries? How Do They Work?

If you are in the market for a new watch and want to avoid battery-powered watches, you might want to look into automatic watches. 

In this article, we will look at what an automatic watch is, what makes it different from battery-powered watches, and all the details about this kind of watch.

Do automatic watches have batteries?

No, automatic watches do not have batteries. Automatic watches are powered by the movement of your body as you wear them. The energy is stored in a spring, which unwinds gradually to power the watch.

How are automatic watches powered?

Do Automatic Watches Have Batteries? How Do They Work?

Automatic watches are a type of watch that uses the natural movement of the wearer’s wrist to wind the mainspring, eliminating the need for a battery.

A rotor is attached to the movement of an automatic watch. The rotor can turn freely when the wearer moves their wrist. When the rotor turns, it winds up the mainspring, where the energy is stored. The mainspring gets tighter the more energy is put into the movement. This is how it saves energy. As the mainspring unwinds in a controlled and measured way, it gives energy to the movement and keeps it going even if the rotor isn’t always turning.

Mechanical watches: automatic vs. hand-winding

Mechanical watches can be either hand-winding or self-winding (Automatic watches). As we mentioned above, hand-winding automatic watches must be wound manually before running, while self-winding automatic watches will wind themselves using an internal rotor.

So, the mechanical watch, whether hand-winding or self-winding, doesn’t use a battery and has parts that move independently.

Hand-winding watches, on the other hand, are so-called for a reason. They are fundamentally similar to automatic movements, with the main distinction being that they lack rotors.

Consequently, hand-winding watches, also known as manual watches, must be wound by hand to create energy for the mechanism. Winding the crown provides energy to hand-wound movements. The disadvantage with manual-wound watches is that you must remember to wind them, something you do not have to do with automatic or quartz watches.

How long do automatic watches reserve power?

Automatic watches have a power reserve, which means they can store energy for a certain amount of time. Depending on the watch, this can be anywhere from 24 hours to over a week. The power reserve keeps the watch ticking even when you’re not wearing it.

Most automatic watches will run for at least 24 hours after being fully wound, and some can run for days or weeks. However, if you don’t wear your watch regularly, it will eventually stop running altogether. To keep your automatic watch in good condition, you should wind it and wear it at least once a week.

What happens if an automatic watch stops?

Most automatic watches have a power reserve of around 48 hours to a few days, so they must be wound regularly to keep running. If your watch has been worn for a while, it may need to be wound up before it starts working again.

As we said, automatic watches are powered by the movement of your wrist as you wear them. If your watch is not getting enough wrist movement to keep it powered, it will eventually stop working. The best way to fix this issue is to start wearing your watch again regularly.

If you have worn your watch for an extended period and it is still not functioning, there may be a problem with the internal mechanics of your watch. This is often not something that can be fixed at home and requires expert assistance.

Read: Rolex Service Guide: The Cost And All Important Details

How long do automatic watches last?

When it comes to automatic watches, there is no one-size-fits-all answer to the question of how long they will last. 

An automatic watch’s lifespan depends on several factors, including the quality of the watch, the level of care and maintenance it receives, and the wearer’s personal habits. With proper care, an automatic watch can last a lifetime. 

However, if an automatic watch is not properly maintained, it may only last for a few years.

Automatic watches without battery or hand-winding

Many automatic watches on the market do not require a battery or hand-winding. These watches are powered by the movement of your body, and they are very convenient because you never have to worry about charging or winding them.

Some of the best automatic watches without battery or hand-winding include the following:

Fossil Townsman ME3171

The Townsman is great for those looking for an automatic watch without the hassle of a battery or hand-winding. This watch features a sleek navy leather strap and a stainless steel case with a mineral crystal glass face.

The watch face is easy to read, with large numerals and a second hand. The Townsman is a great everyday watch for those who want the convenience of an automatic watch without the hassle of a battery.

With a revolutionary see-through display, Townsman shows the watch’s inner workings. This watch stands out whether you’re wearing it for the workplace or the weekend.

It is available at $240.

Seiko SNKN37

The Seiko SNKN37 is an automatic watch that does not require a battery or hand-winding. It uses Seiko’s unique Kinetic technology, which means that it is powered by the movement of your body. This makes it a very efficient and environmentally friendly watch.

It has a power reserve of up to 50 hours, so you can be sure it will keep running even if you don’t wear it for a couple of days. The watch also features a date display, luminous hands, and markers for easy reading in low-light conditions. And with its stainless steel case and leather bracelet, it looks great on any wrist.

It is water-resistant to 100 meters, making it ideal for swimming and other water activities. The Seiko SNKN37 is a stylish and functional watch that will keep you on time and look good.

You can get it for around $150.

Invicta Pro Diver 35721

Invicta Pro Diver 35721

Invicta Pro Diver 35721 is an automatic watch that doesn’t require a battery or hand-winding. It’s powered by the movement of your body, so it’s always keeping time. 

The watch has a classic dive watch look with a light black dial, luminous hands, and markers. It’s water resistant to 200 meters, so you can wear it swimming or diving.

The Invicta Pro Diver 35721 is a great choice for an affordable, stylish, and reliable automatic watch. You can get it for $80.

Read: Best Automatic Watches Under $200 That Look More Expensive


Batteries are not used in automatic watches. Instead, they are fueled by your activity while wearing them. As a result, they are more environmentally friendly than battery-powered timepieces. If you’re searching for an automatic watch that doesn’t need a battery or hand-winding, we suggest browsing through our list of the finest automatic watches that don’t require a battery or hand-winding. If you want to find out more about automatic watches and how they work, you can check out our other post about these timepieces.

Sarah Salimah

Sarah has been interested in watches for as long as she can remember. She loves watches and writing about them and enjoys experiencing the feeling of high-end models. She was born in Ohio, went to school for art history, and has a genuine enthusiasm for reading literature, walking, and sometimes playing padel.

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