Casio's DBC310-1 men's databank watch is ideal for busy people who love the convenience of having telephone numbers and other essential data right at their fingertips. The watch lets you store 300 pages of either Telememo (names, telephone numbers) or Schedule-memo (messages, months, days, times) data with up to 8 digits and 12 numerals per page. A built-in keypad facilitates data entry, and its EEPROM (electrically erasable programmable read-only memory) retains your data even when the battery goes dead. So don't worry: you'll never have to retype it all. Your eyes will like the DBC310-1's electro-luminescent backlight with afterglow, making it easy to read anywhere, anytime. View time in either 12- or 24-hour formats. The piece is water-resistant, and it offers a stopwatch with readings down to .01 seconds. It's accurate within +/- 30 seconds per month, and the supplied battery should last you about 2 years. Other features include a daily alarm, a countdown alarm, hourly time signals, and an auto-calendar feature (preprogrammed to the year 2094).