the calculator home page

Olympia OP644

The Olympia OP644 is a programmable calculator with 12 digits precision and algebraic logic. It has an unknown number of functions, 54 keys and an LCD (liquid crystal) display. The power source is 2x3V cell + sealed battery. The calculator was manufactured in Japan.

Facts at a glance:

Type Programmable
Functions unknown
Keys 54
Precision 12
Logic Algebraic
Display type LCD
Display size
Printer Y
Length 90 mm
Width 173 mm
Thickness 20 mm
Weight 258 g
Power Source 2x3V cell + sealed battery
Country Japan
Original price unknown
Est. current value unknown
Year introduced 1983
Year discontinued 1983

See other calculators manufactured by Olympia.