Casio - Calculator - 1970-1980 - Vintage 1973 Casio √121-S
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Current bid
€ 2
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Selected by Toby Wickwire
Specialises in video games and computer collectables with 40 years' collecting experience.
Estimate € 220 - € 250
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Casio √121-S, a vintage 1973 desktop calculator in good condition with a 12‑digit VFD display, dimensions 17.5 × 6.5 × 20.5 cm, in working order and including the original manual, dust case and power cord.
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Description from the seller
A Masterpiece of Japanese Engineering: The 1973 Casio √121-S "Root" Calculator
Own a significant piece of computing history. Released in 1973, the Casio √121-S was a high-end professional desktop calculator that represented the pinnacle of Casio’s early electronic innovation. Originally retailing for a substantial 59,000 JPY—a small fortune in the early 70s—this machine was designed for serious mathematical work, featuring a then-revolutionary square root (√) function.
Technical & Aesthetic Excellence:
Luminous VFD Display: Features a brilliant 12-digit Vacuum Fluorescent Display (VFD) that emits the iconic, warm blue-green glow highly coveted by retro-tech collectors.
Mid-Century Design: The bold black and white industrial chassis, complemented by vibrant red, blue, and tactile black keys, makes it a stunning centerpiece for any modern or vintage-themed office.
Authentic Heritage: Proudly "Made in Japan" by Casio Computer Co., Ltd..
Complete Collector's Set: This listing is exceptional due to the inclusion of its original accessories:
Original Manual: A rare Japanese instruction booklet providing historical context.
Protective Soft Case: The original black branded Casio dust cover.
Integrated Power Cord: Ready for immediate use.
Condition Report:
Functionality: Fully tested and operational. The display is bright and clear, and the mechanical feedback of the keys remains excellent.
Aesthetics: Well-preserved vintage condition. Shows minor signs of careful use over its 50-year history, adding to its authentic "Showa Retro" patina.
For the connoisseur of industrial design or the pioneer of digital history, the √121-S is an essential acquisition that bridges the gap between mechanical calculation and the modern computer age.
Popular Search Keywords
Casio, Calculator, Vintage, 1973, Japan, VFD, Retro, Desktop, Electronic, Math, Computing, History, Engineering, Display, Office, Interior, Collectible, Rare, Showa, Industrial
A Masterpiece of Japanese Engineering: The 1973 Casio √121-S "Root" Calculator
Own a significant piece of computing history. Released in 1973, the Casio √121-S was a high-end professional desktop calculator that represented the pinnacle of Casio’s early electronic innovation. Originally retailing for a substantial 59,000 JPY—a small fortune in the early 70s—this machine was designed for serious mathematical work, featuring a then-revolutionary square root (√) function.
Technical & Aesthetic Excellence:
Luminous VFD Display: Features a brilliant 12-digit Vacuum Fluorescent Display (VFD) that emits the iconic, warm blue-green glow highly coveted by retro-tech collectors.
Mid-Century Design: The bold black and white industrial chassis, complemented by vibrant red, blue, and tactile black keys, makes it a stunning centerpiece for any modern or vintage-themed office.
Authentic Heritage: Proudly "Made in Japan" by Casio Computer Co., Ltd..
Complete Collector's Set: This listing is exceptional due to the inclusion of its original accessories:
Original Manual: A rare Japanese instruction booklet providing historical context.
Protective Soft Case: The original black branded Casio dust cover.
Integrated Power Cord: Ready for immediate use.
Condition Report:
Functionality: Fully tested and operational. The display is bright and clear, and the mechanical feedback of the keys remains excellent.
Aesthetics: Well-preserved vintage condition. Shows minor signs of careful use over its 50-year history, adding to its authentic "Showa Retro" patina.
For the connoisseur of industrial design or the pioneer of digital history, the √121-S is an essential acquisition that bridges the gap between mechanical calculation and the modern computer age.
Popular Search Keywords
Casio, Calculator, Vintage, 1973, Japan, VFD, Retro, Desktop, Electronic, Math, Computing, History, Engineering, Display, Office, Interior, Collectible, Rare, Showa, Industrial
Details
Era
1900-2000
Title additional information
Vintage 1973 Casio √121-S
Number of objects
1
Material
Plastic
Manufacturer/brand
Casio
Designer/artist/maker
casio
Condition
Good condition - used with small signs of aging & blemishes
Height
6.5 cm
Width
17.5 cm
Depth
20.5 cm
Estimated period
1970-1980
In working order
Yes
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