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Rare Vintage Casio Weather Station Barometer BM-500W Men’s Digital Sports Watch

DIRECT PRICE — SAVE 10%
EBAY PRICE$199.00
DIRECT -10%$179.10
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BRAND:
Casio
UNIT CONDITION:
Pre-owned - Good
► SELLER'S DESCRIPTION
Up for sale is a rare vintage Casio Weather Station Barometer BM-500W men’s digital sports watch, a Japan Domestic Market (JDM) release from the late 1980s powered by Module 923. This model is especially popular with collectors because it predates the G-Shock line, and many of the design cues and functional features later seen in early G-Shock models were directly inspired by this watch. Part of Casio’s innovative “Weather Station” series, the BM-500W combines rugged styling with advanced technology for its time, including a barometer function alongside Casio’s full suite of digital timekeeping tools. The watch is in full working condition and all features operate properly, including timekeeping, alarm, stopwatch, calendar, and barometer. I am unsure if the band is original to the watch or not. The watch remains in good physical condition overall, showing signs of use consistent with age. Please review the photos carefully, as they best describe its condition. Key Details: • Brand: Casio • Model: Weather Station BM-500W • Module: 923 • Era: Late 1980s (pre-G-Shock) • Market: Japan Domestic Market (JDM) • Functions: Time, Alarm, Stopwatch, Calendar, Hourly Signal, Barometer • Water Resistance: 100M • Strap: Unsure if original • Condition: Good overall with signs of use; all functions working properly This is a highly desirable and historically important late 1980s Casio digital sports watch, representing a direct predecessor to the G-Shock line — making it a standout piece for serious collectors. 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 ►

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