【The main function】
* The mirror surface is transparent in water;
* Automatic LED lighting;
* Antimagnetic;
* 200 meters waterproof;
* World time (48 hours);
* Stopwatch (accurate to 1/1000 second);
* Countdown;
* Alarm;
* Intermittent beep;
* Fully automatic calendar;
* 12/24 hour system