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NOS Rare Vintage Casio Pro Trek PRL-20 Twin Sensor Digital Sports Watch JDM 90s
■ STATUS: SOLD
THIS TIMEPIECE HAS FOUND A NEW HOME
► SELLER'S DESCRIPTION
Up for sale is a rare NOS vintage Casio Pro Trek PRL-20 Twin Sensor digital sports watch, equipped with module 1676 and produced for the Japan Domestic Market (JDM) in the 1990s. This model represents an early generation of Pro Trek technology, combining altimeter, barometer, and thermometer functions into a compact outdoor-focused design.
The watch is brand new and unused, complete with its original box, hang tags, paperwork, and both original bands — the factory-installed fabric field strap and the additional original leather strap still stored in the packaging. All features and functions are working properly, including the Twin Sensor system and auto EL backlight. The digital display is crisp, and every button operates exactly as intended.
The watch remains in mint, never-worn condition, showing no signs of use. It is exceptionally rare to find this model in full NOS condition with all accessories present.
Please review the photos, as they best describe the watch’s physical condition and everything included.
Key Details:
• Brand: Casio
• Model: Pro Trek PRL-20
• Module: 1676
• Era: 1990s
• Market: Japan Domestic Market (JDM)
• Sensors: Twin Sensor (Altimeter / Barometer / Thermometer)
• Features: Auto EL backlight, memory function, digital compass-style environmental data readings
• Condition: NOS – Mint – Never used
• Accessories: Original box, hang tags, paperwork/manuals, original factory strap, and additional original leather band
A fantastic opportunity to add a fully complete, unused 1990s Pro Trek to a collection. These early JDM Twin Sensor models are becoming increasingly hard to find — especially in true NOS 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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