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Rare Vintage Casio Radial Graph RGW-20 Men’s Digital Sports Watch JDM 1980s
■ THIS EXACT PHOTOGRAPHED WATCH IS ONE OF ONE. ONCE IT SELLS, THIS PAGE BECOMES AN ARCHIVE.
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► SELLER'S DESCRIPTION
Up for sale is an ultra rare vintage Casio Radial Graph RGW-20 men’s digital sports watch, powered by Module 918 and produced exclusively for the Japan Domestic Market (JDM) in the 1980s. This highly sought-after model stands as one of Casio’s most unique and collectible vintage designs, featuring the brand’s iconic “Radial Graph” display—a semi-circular analog-style digital visualization that tracks seconds and chronograph readings with precision and style.
The watch is in full working condition, and all features and functions operate properly, including timekeeping, stopwatch, recall, and split/lap display. The Radial Graph animation is smooth and fully functional, showcasing Casio’s pioneering approach to digital design and sports timing.
It is fitted with a genuine replacement Casio strap and buckle, identical in style to the original factory configuration, which had deteriorated from age. The watch itself remains in excellent physical condition, showing only the most minor signs of wear consistent with careful storage and age. The photos best describe its physical condition, and it presents beautifully overall.
Key Details:
• Brand: Casio
• Model: Radial Graph
• Reference: RGW-20
• Module: 918
• Era: 1980s
• Market: Japan Domestic Market (JDM)
• Functions: Time, Stopwatch, Lap/Split, Recall, Radial Graph Animation Display
• Case Material: Resin with Stainless Steel Back
• Strap: Genuine Casio Replacement Strap and Buckle
• Water Resistance: 100M
• Condition: Full working condition; excellent physical condition with minimal signs of age
An extremely rare and nearly impossible-to-find vintage Casio, especially in this condition and fully functional state. A must-have piece for serious vintage Casio and digital watch collectors.
Ships carefully. Feel free to message me with any questions.
► MANUAL ARCHIVECasio module 918 manual PDFs
► ARCHIVE FILE: CASIO — BRAND HISTORY
Casio brought an electronics company's imagination to the wrist, moving from calculators to the calendar-equipped Casiotron in 1974. G-Shock toughness, Databank utility, and affordable icons such as the F-91W turned the company into a digital-watch giant whose early modules and resin-cased designs are now a distinct collecting field.
Read the full Casio story — and shop all Casio watches ►► RELATED TIMEPIECES DETECTED (4)
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