Casio - Calculator - 1970-1980 - ST-1 calculator with stopwatch functions
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Casio ST-1 calculator with stopwatch functions, a portable four-function calculator with timer and chronometer, dating from 1977–1980 in Japan, in good condition and working order, powered by a single AA battery, with an 8-digit blue-green VFD display.
AI-assisted summary
Description from the seller
The object shown is a Casio ST-1 portable calculator with built-in timer and stopwatch functions. Introduced in Japan in 1977, it was one of the first devices to specifically combine these functions.
Main Features
Functions: It is a four-function calculator (addition, subtraction, multiplication, division), with percentage, memory, and square root.
Stopwatch: Include multiple stopwatch modes: standard, dead time (time out), and two lap times (lap-1, lap-2), with a dedicated switch to switch from calculation mode to timer mode.
Display: It uses a blue-green 8-digit vacuum fluorescent display (VFD), recessed for better visibility in bright-light conditions.
Design: The distinctive design includes a cover to protect the calculator keypad during use as a stopwatch and a large button, thumb-operated, to start/stop the timer.
Power: It runs on a single 1.5 V AA battery.
Perfectly functioning
The object shown is a Casio ST-1 portable calculator with built-in timer and stopwatch functions. Introduced in Japan in 1977, it was one of the first devices to specifically combine these functions.
Main Features
Functions: It is a four-function calculator (addition, subtraction, multiplication, division), with percentage, memory, and square root.
Stopwatch: Include multiple stopwatch modes: standard, dead time (time out), and two lap times (lap-1, lap-2), with a dedicated switch to switch from calculation mode to timer mode.
Display: It uses a blue-green 8-digit vacuum fluorescent display (VFD), recessed for better visibility in bright-light conditions.
Design: The distinctive design includes a cover to protect the calculator keypad during use as a stopwatch and a large button, thumb-operated, to start/stop the timer.
Power: It runs on a single 1.5 V AA battery.
Perfectly functioning
Details
Era
1900-2000
Title additional information
ST-1 calculator with stopwatch functions
No. of items
1
Material
Plastic
Manufacturer/ Brand
Casio
Condition
Excellent condition: barely used with minimal signs of wear
Height
13.3 cm
Width
7.4 cm
Depth
3 cm
Weight
200 g
Estimated Period
1970-1980
In working order
Yes
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