How to tell the authenticity of a watch? Will there be fakes?

Domestic watches have no high imitation value. There is no such thing as a fake.

The quality is average, so I'm lucky. The function is average, and the weather forecast is different from that of several countries!

The button is too protruding and unprotected. When you wash your hands, you will get water if you are not careful.

If you can't calibrate your position, altitude and air pressure, say you are on the flat ground in the Himalayas. When you were in space, you said you were a guest of Hades.

Alarm clock, do it if you want, whether you set it or not. Data storage 16G card only recognizes 2G.

Known as the "third".