Casio Watch Big Store

Casio is best known for its calculators, audio equipment, PDAs, cameras, musical instruments, and watches. In 1957 Casio released the world's first entirely electric compact calculator.

Especially popular are its dual function (LCD and analog) watches, some of which, called Wave Ceptors, receive radio signals daily from an atomic clock to keep accurate time. These watches come with lengthy manuals (50 pages each in English and Spanish, each the size of a business card) about how to master the intricate features as to tell time in many time zones, use alarms and timers or follow Daylight-Saving Time.

The most famous are: Casio F91W, Casio DW-5600C, Casio DW-5600E and line of G-Shock.