J.Market Sports Watch Men's Multi-Function Digital LED Watch Electronic Watch 50 Meters Waterproof Luminous Watch Display hour,minute,second,and week,chime hourly and daily alarm. 12/24H format,auto calendar,1/100 second chrongraph with split functions.Elbacklight 50 meters waterproof and luminous watch, Multi-function LED Electronicsport watch. Diameter of watch dial:5.1 cm,Watch band 24 cm,weight:60g Notice:When you are showering swimming and diving please do not operate the watches or do not use it in hot water