Here's why:
* Magnetic fields affect watch movements: A strong magnetic field can interfere with the delicate mechanics of a watch movement, causing it to run inaccurately or stop completely.
* Non-magnetic materials are used to shield the movement: The watch case, dial, and other components are often made of materials like:
* Stainless steel: While some stainless steel is magnetic, the grades used in watches are typically non-magnetic.
* Copper: A highly conductive metal, often used in watch cases and dials, and is non-magnetic.
* Brass: Another non-magnetic metal commonly used in watchmaking.
* Titanium: A lightweight and strong metal, also non-magnetic.
Therefore, the dial of a watch is made of a non-magnetic metal to minimize the potential for magnetic interference.
