1. Men's mechanical watch:Self-winding automatic movement . Powered by everyday movement of your arm.
2.Luminous watch:luminous hands/markers(need to absorb light energy storage) and magnified date window at three o'clock
3.Synthetic sapphire glass and solid stainless steel strap and case
Waterproof watch:its waterproof 30 meters, can withstand rain water splash, rather than hot water shower and sauna