via CASIO Calculator Data Bank Watch Red with Stainless Steel Bracelet [Ships mail] Men's CA-500WE-4B [Used]

This model is designed with the motif of the CQ-1, a multi-function calculator with a clock function that was released by Casio in 1976. The CQ-1 was a groundbreaking product at the time, combining clock, alarm, stopwatch, and calculation functions in one unit, and gained widespread popularity, nicknamed "Denkuro." This nostalgic model is part of Casio's iconic CA-500 series, which features an 8-digit calculation function, and comes in the same color as the CQ-1 that was released at the time.