Casio Databank Telememo 50 DBC-630 Features Telememo Function: This function allows you to store up to 30 entries of names (up to 8 characters) and phone numbers (up to 16 digits). Calculator Function: Calculations can be performed using the keypad on the bottom of the watch. Other Functions: Stopwatch, timer, 3 alarms, hourly time signal, full auto-calendar, dual time, etc. are included. Illuminator: The EL backlight illuminates the display in the dark, and operation sounds are also emitted. Design: This is a vintage model manufactured in the 1990s, characterized by its retro design. Stored in a box, The battery is dead. Operation has not been confirmed. Please consider purchasing with the understanding that it is sold as-is. No returns accepted. Thank you for viewing.