Hpolw Men's Waterproof Digital Multifunctional LED Alarm Sport Watch (Blue) Watch Chain length: 10.23'' (26cm);Case diameter: 2.2"(56mm); Table Bandwidth: 0.94''(24mm); Weight: 127G; Case Thickness: 0.82''(21mm); Water Depth: 30 M; Surface Diameter: 1.88''(48mm); Features in timer,backlight(make sure you can see the time in dark),day/date feature,luminous display and buckle closure Water resistant to 30 M (100 feet), which is suitable for snorkeling and swimming, but not diving High polish Metal,Durable adjustable silicone strap;Come with steel box and one black velvet bag; Digital watch with multiple displays