Casio - CA53WF-3B

The Casio calculator model, a perennial favorite since its 1980s debut, gets military green makeover. The same original cool-gadget calculator functions are paired with an oblong case and metal band for a pure retro look. With a calculator function that can handle 8-digit computations, a 1/100 stopwatch, and an alarm, this timepiece adds up to cool, calculated style.