Calculator watch financial functions (in the Casio CBA-10). Usually calculator watch operates with eight digits number, however, calculator watch can operate with 6 digits (for example, Casio C-801) or 10 digits (Casio CBA-10) numbers. Calculator watches first appeared in the mid 1970s introduced by Pulsar (1975, then a brand of the Hamilton Watch Company) and Hewlett Packard. Several watch manufacturers have made calculator watches over the years, such as Pulsar and Timex, but the Japanese electronics company Casio produced the largest variety of models. In the mid-1980s, Casio created the Databank calculator watch, which not only performed calculator functions, but also stored
SABA (electronics manufacturer) manufacturing of headphones, radio parts, and a variety of products from radio components to receivers. In 1931, SABA produced more than 100,000 units of the SABA Radio Type S-35. It introduced for the first time on the market dynamic loudspeakers which became soon a bestseller. The company developed the first radio receiver with search and automatic fine tuning in all bandwidths. In 1951 IFA, a consumer industry electronics show in Berlin allowed SABA to show the first TV receiver to the world. SABA successes enabled the company to manufacture tape recorders. It introduced the large TV screen projector 'Telerama' on