The perfect clock/calculator for business professionals on the go. The calculator features a clock displaying hours, minutes and seconds, a perpetual calendar (1900-2099), 12/24-hour mode, an alarm clock, 99-hour countdown timer and world times for 16 different international cities. The leatherette carrying case features three inside pockets for business cards or credit cards and a penholder. Smaller than a checkbook, all of this fits neatly in just about any pocket or purse. Operates on one button cell battery (CR2016) included. Unit features brushed aluminum construction with black case. Gift boxed.