How It Works

How watches work, explained: Ever wondered what is really ticking inside your watch? These interactive guides let you look inside see-through models, click the parts and watch them move.

How watches work: pick a guide

What you will learn

Each guide uses a see-through, animated model so you can see how watches work from the inside. You will learn how a quartz crystal keeps time, how a mainspring and rotor power an automatic movement, how an LCD shows digits, how light charges a solar watch and how sensors track your health. Click the parts, press the buttons and compare the types before you buy.

Not sure which type suits you? Take our 1-minute quiz.

New guides are added regularly. Ready to pick one? See our best watches under $100 or best cheap automatic watches.

Now that you know how watches work, you can shop with confidence. For more background, see the Wikipedia article.