Casio Watches of the 1980s

Casio’s 1980s watches show the wristwatch evolving from a timekeeper into a durable sports tool and a compact information device. The W-100, introduced in 1980, combined a lightweight resin case with 100-meter water resistance, athletic timing functions, and an approximately five-year battery life. In 1981, the J-100 catered to the jogging boom with a pace-setting signal and measurements for time, distance, strides, and average speed, plus lap timing to one-hundredth of a second.

Several 1982 models pushed beyond conventional watch functions. The C-80 was Casio’s first calculator-style watch, offering eight-digit arithmetic through a fingertip keypad whose circuitry could resolve simultaneous key presses. The T-1500 and T-2000 added English-Japanese and Japanese-English dictionaries, while the TS-1000 introduced a built-in thermometer and temperature alerts. For divers, the DW-1000 delivered 200-meter water resistance and an approximately seven-year battery life. The AQ-500 blended an analog display with three hands and a digital screen, pairing formal styling with practical features such as a stopwatch and dual time. In 1983, the AT-550 advanced the combination-watch idea with a calculator operated by tracing numbers and symbols on its glass; its character-recognition system worked across different writing sizes and positions. Together, these designs highlight Casio’s emphasis on miniaturization and experimentation, anticipating functions later associated with wearable and touchscreen technology.