Casio

1974 with the revolutionary Casiotron, the first digital watch featuring an automatic calendar, leveraging their calculator tech. The 1980s brought iconic, affordable models like the F-91W and the rugged G-Shock (1983) for extreme durability, alongside popular calculator and Data Bank watches. Innovation continued with features like solar power, radio control (Wave Ceptor), and GPS in PRO TREK, solidifying Casio's reputation for combining technical innovation with classic, functional, and durable designs in the digital watch market.