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Rare Vintage Casio Yacht Timer TRW-31 Men’s Digital Sports Watch 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 Yacht Timer TRW-31 men’s digital sports watch, a Japan Domestic Market (JDM) release from the 1980s powered by Module 862. Designed specifically for sailing and regatta timing, this model features Casio’s dedicated yacht countdown timer function along with multiple useful sports features.
The watch is in full working condition and all functions operate properly, including timekeeping, alarm, hourly signal, stopwatch, and the specialized yacht timer. It is currently fitted with an aftermarket strap. The watch itself is in excellent physical condition with only minor signs of storage and careful handling over the years. Please review the photos closely, as they provide the best representation of its physical condition.
Key Details:
• Brand: Casio
• Model: TRW-31 “Yacht Timer”
• Module: 862
• Era: 1980s
• Market: Japan Domestic Market (JDM)
• Functions: Yacht Timer Countdown, Time, Alarm, Stopwatch, Hourly Signal, 24H Display
• Water Resistance: 100M
• Strap: Aftermarket
• Condition: Excellent with only minor signs of use in storage
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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