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Rare Vintage Casio AQ-101 Men’s Ana-Digi Sports Watch JDM 1980s Module 302
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► SELLER'S DESCRIPTION
Up for sale is an ultra-rare vintage Casio AQ-101 men’s ana-digi alarm chronograph sports watch from the 1980s, featuring Module 302. This Japan Domestic Market (JDM) model is a standout example of Casio’s early ana-digi innovation, combining analog and digital displays within a distinctive square case design that reflects the brand’s transition-era engineering.
The analog portion of the watch is not working. However, all other features and functions operate properly, including the digital time display, alarm, chronograph, and dual-display functions. The watch is fitted with an aftermarket strap.
Physically, the watch is in excellent overall condition and notably still retains its original caseback sticker, an uncommon detail for a piece of this age. The photos best describe its physical condition and should be reviewed carefully.
Key Details
• Brand: Casio
• Model: AQ-101 Ana-Digi Alarm Chronograph
• Module: 302
• Era: 1980s
• Market: Japan Domestic Market (JDM)
• Display: Analog + Digital (Ana-Digi)
• Functions: Time, Alarm, Chronograph, Dual Display
• Strap: Aftermarket replacement
• Condition: Analog function not working; all other functions operating properly; excellent physical condition with original caseback sticker present
A highly collectible and visually striking vintage Casio that highlights the brand’s early ana-digi experimentation—an excellent addition for serious Casio collectors and enthusiasts of 1980s digital design.
Ships carefully. Feel free to message me with any questions.
► ARCHIVE FILE: CASIO — BRAND HISTORY
Casio began not with watches but with calculation. Tadao Kashio founded Kashio Seisakujo in Tokyo in 1946, and with his three brothers developed the 14-A in 1957, the world's first compact all-electric relay calculator, incorporating the business as Casio Computer Co. that same year. The move into watchmaking came in November 1974 with the Casiotron, a digital watch whose claim to fame was an automatic calendar that knew how many days each month had, a small feat of logic that announced how an electronics firm would approach timekeeping.
Read the full Casio story — and shop all Casio watches ►► RELATED TIMEPIECES DETECTED (4)
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