1 / 6
Rare Vintage Casio B821 Men’s Digital Sports Watch Module 244 JDM 1980s
■ STATUS: SOLD
THIS TIMEPIECE HAS FOUND A NEW HOME
► SELLER'S DESCRIPTION
Up for sale is a rare vintage Casio B821 men’s digital sports watch, powered by Module 244 and produced for the Japan Domestic Market (JDM) during the 1980s. This model reflects Casio’s clean, utilitarian digital design language of the era and is a classic example of early JDM digital watchmaking.
The watch is being sold for parts and repair. It is currently not functioning and completely untested, so the exact issue is unknown and it is not known whether it can be repaired. This listing is intended for collectors, watchmakers, or restoration projects.
The watch does not come with a strap/bracelet.
The watch shows signs of use and age consistent with a genuine vintage piece from the 1980s but is in very good overall condition . The photos best describe its physical condition and should be reviewed carefully.
Key Details
• Brand: Casio
• Model: B820
• Module: 244
• Era: 1980s
• Market: Japan Domestic Market (JDM)
• Movement: Digital quartz
• Condition: Not working; completely untested; sold for parts or repair
• Strap: None included
• Notes: Shows signs of use and age; photos best describe condition
A solid opportunity to acquire a classic JDM Casio digital watch as a restoration project or for parts.
Ships carefully.
Feel free to message me with any questions.
► MANUAL ARCHIVECasio module 244 manual PDFs
► ARCHIVE FILE: CASIO — BRAND HISTORY
Casio transformed digital watchmaking with the calendar-equipped Casiotron, famously tough G-Shock, and practical Databank watches, creating affordable icons whose early modules and aging resin cases now fascinate collectors.
Read the full Casio story — and shop all Casio watches ►► RELATED TIMEPIECES DETECTED (4)
RECOMMENDATIONS BASED ON BRAND AND MOVEMENT ANALYSIS



