Casio ca 53w 1er unisex calculator resin black strap watch achieve maximum retro style with this casio core collection watch designed in solid black coloured resin case with 8 digit calculator dial featuring a plastic dial window rubber bezel and band movement digitalresin band achieve maximum retro style with this casio core collection watch designed in solid black coloured resin case with 8 digit calculator dial featuring a plastic dial window rubber bezel and band daily alarm