Casio CA500WEG-1AVT Watch. Indulge your love for gadgety design with a Casio watch with calculator functions. The Casio calculator model, a perennial favorite since its 1980s debut, gets a high-quality metallic 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. Resin case. Stainless steel band. Adjustable clasp. Water resistant. Approximate battery life: 5 years on CR2016. Dual time. 1/100-second stopwatch. Measuring modes: Elapsed time, split time, 1st-2nd place times. Daily alarm. Hourly time signal. Full auto-calendar to year 2099. Button operation tone off/on. Accuracy: +/- 30 seconds per month. 8-digit calculator. 12/24-hour format. Regular timekeeping: Hour, minute, second, am/pm, year, month, date, day. Imported.