yuink mens watch ultra-thin digital sports watch waterproof stainless steel fashion wrist watch for men women yuink ultra thin mens digital waterproof sports watch backlight digital simple fashion watch for men.1.imported digital electronic movement:provide precise and accurate time keeping back light stylish minimalism design . equipped with luminous, alarm clock, week, calendar and stopwatch function. dial width: 42mm dial thickness: 7mmtotal length of watch: 253mm 5 atm waterproof for swim and shower: 100 ft / 50 m (lifetime waterproof, not suitable for long time underwater activities such as diving. (please donot press any buttons underwater.) what‘s in the package:watch x 1. instruction manual x 1