Do watches emit electromagnetic waves?

You have not mentioned if the watch is mechanical or electronic. So I'll address both the cases. Mechanical watches, they do emit electromagnetic radiation. read more

Mechanical watches, they do emit electromagnetic radiation. As they are at a certain temperature, they will emit Infrared radiation, which is a part of the electromagnetic radiation spectrum. Electronic watches also emit the Infrared radiation. In addition to that they also emit Radio waves. read more

Visible light is a form of electromagnetic radiation. The purpose of a television is to emit visible light to display a picture. A television emits electromagnetic waves because that is exactly what it was designed to do. read more