... lava led watch 1.LED watch led lights display movement 2,light color:red,blue,white,colorful 3,use batteries Iron samurai lava led watch 1) ... Power supply: one CR2016 batteries 2) 12/24 hour clock, LED digital display hours, minutes ... .What type of batteries does this watch use?This Japanese LED watch uses a single CR2016 watch battery. Other names this type of ...