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Rare Vintage Casio Weather Station Barometer BM-500W Men’s Digital Sports Watch
■ 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 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.
► MANUAL ARCHIVECasio module 923 manual PDFs
► ARCHIVE FILE: CASIO — BRAND HISTORY
Casio brought an electronics company's imagination to the wrist, moving from calculators to the calendar-equipped Casiotron in 1974. G-Shock toughness, Databank utility, and affordable icons such as the F-91W turned the company into a digital-watch giant whose early modules and resin-cased designs are now a distinct collecting field.
Read the full Casio story — and shop all Casio watches ►► RELATED TIMEPIECES DETECTED (4)
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