Sinclair Wrist Calculator (1977)

Sinclair Wrist Calculator.

Display is 8 digits, red LED.

4-functions, %, memory, square root.

8.1v (6x mercury cells).
Integrated circuit - Mostek MK50321N, here date coded mid-1976.

47 x 45 x 18 mm (1.9 x 1.75 x 0.7 ins).

Made in England by Sinclair Instruments Ltd.

4 comment:

icasea said...

Nice. I wonder if it broke due to static from clothing like the infamous "black" watch Sinclair made. Both are real smart looking designs though.

the wyrding module said...

that's brutal, looks like it came out of a christmass cracker. It's a must have accessory, a proper babe magnet...feel my calcuations...oh yeah...

Collapsoft said...


m¦¦m said...

the wyrding module said..."feel my calcuations...oh yeah..."


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