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Rare Vintage Casio W-91 Men’s Digital Sports Watch Module 935 JDM 1980s
■ ONE OF A KIND — THIS IS THE ONLY ONE. ONCE IT SELLS, THIS PAGE BECOMES AN ARCHIVE.
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► SELLER'S DESCRIPTION
Up for sale is a rare vintage Casio W-91 men’s digital sports watch, powered by Module 935 and produced for the Japan Domestic Market (JDM) in the 1980s. This is a highly unusual and seldom-seen Casio model, representing the brand’s classic early digital sports designs from its golden era.
The watch is in full working condition, and all features and functions of the watch are operating properly. Timekeeping, display, modes, and button operation all function as intended.
The watch is fitted with a genuine Casio strap. It is in excellent physical condition, retaining clean, well-preserved surfaces and strong overall presentation. The photos best describe its physical condition and should be reviewed carefully.
This is a very rare and unique Casio model, not commonly encountered, especially in this configuration and overall condition, making it an excellent addition for collectors of vintage Casio and JDM digital watches.
Key Details:
• Brand: Casio
• Model: W-91
• Module: 935
• Era: 1980s
• Market: Japan Domestic Market (JDM)
• Functions: Time, calendar, digital modes
• Strap: Genuine Casio strap
• Condition: Full working order; excellent physical condition
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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