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Rare Vintage Casio TRW-100 Sailing Timer Men’s Digital Sports Watch JDM 1980s

■ STATUS: SOLD
THIS TIMEPIECE HAS FOUND A NEW HOME
LAST PRICE
$150.00
BRAND:
Casio
UNIT CONDITION:
Pre-owned - Good
► SELLER'S DESCRIPTION
For sale is a rare vintage Casio TRW-100 Sailing Timer men’s digital sports watch, powered by Casio’s Module 1004. Produced in the late 1980s, this purpose-built model was designed specifically for sailing and water sports, offering specialized features for race start countdowns and tacking maneuvers. The watch is in full working condition — all functions operate as intended, including the countdown timer, alarm, and the unique sailing-specific tack and angle indicators. With a water resistance rating of 100 meters, it’s well-suited for a wide range of marine activities. Cosmetically, the watch is in excellent condition with only light signs of use. Please refer to the detailed photos for the best representation of its physical condition. Key Features: • Model: Casio TRW-100 • Module: 1004 • Water Resistance: 100 meters • Sailing Timer with Tack and Angle Modes • Countdown Timer and Alarm Functions • Country of Manufacture: Japan This is a fantastic opportunity to own a rare, function-rich Casio from the 1980s — an ideal addition for collectors, sailing professionals, or vintage digital watch enthusiasts.

► 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 ►

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