Sinclair Executive Calculator
Year: 1972
Model: Executive
Manufacturer: Sinclair Radionics, LTD
Designer: Unknown
Dimensions: 56mm x 138mm x 9mm / 2.2″ x 5.5″ x 0.4″
Power:
Made in: England
Available Colors:
The Executive was the first Sinclair calculator, launched in the summer of 1972. It was very thin for the time due to the innovation of using button cell batteries to power the unit.