Vintage 1984 Casio CA-502 digital calculator watch, module 437, made in Japan. A new battery has been installed; beeps/alarm sounds are not currently functioning, but otherwise all buttons/functions work properly. Watch case and face have some light scuffs/wear here and there (please see photos). All calculator buttons are present and functional. Original Casio stainless steel band has been thoroughly cleaned and sanitized and is free of any grime or debris. Please let me... know if you have any questions and feel free to check out my other listings for more vintage Casio watches! *Display stand not included*