This is not a simple Watch It is a Laser Watch which is totally based on medical science It can be used to detect and treat diseases It can be used for hypertension and for Nasl cavity.
First of all, see the video

Advantages

• This watch has a multi-point laser irradiation

• it is medical laser technology

• It has a Dual channel Output.

Additional information

Laser watch LY-218B series apply a theory of low energy laser transducer, utilize single/dual head and multiple output, 650 nm wavelength, the 5mW output power of semiconductor laser irradiation both side of the nasal cavity and any part of the body, so that blood rheology and microcirculation improved through physical effect.
Source