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Silver Seiko Union M SR 81

The Silver Seiko Union M SR 81 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 6 functions, 23 keys and a VFD (vacuum fluorescent) display. The power source is AA batteries.

Facts at a glance:

Type Arithmetic
Functions 6
Keys 23
Precision 8
Logic Algebraic
Display type VFD
Display size
Printer
Length 116 mm
Width 74 mm
Thickness 19 mm
Weight unknown g
Power Source AA
Country
Original price unknown
Est. current value unknown
Year introduced 1978
Year discontinued

See other calculators manufactured by Silver Seiko.