Rare Vintage Casio B812 Men’s Digital Sports Watch Module 58 JDM 1970s

Up for sale is a rare vintage Casio B812 men’s digital sports watch, powered by Module 58 and produced exclusively for the Japan Domestic Market (JDM) during the 1970s. This model represents one of Casio’s early lithium-powered digital watches, showcasing the brand’s precision engineering and minimalist design from the formative years of digital innovation. The watch is in full working condition — all confirmed features operate properly, including timekeeping, date display, and seconds counter. The digital display is clear, and the buttons respond as intended. The watch shows signs of use and age consistent with its original 1970s production. It is fitted with an aftermarket black resin/rubber strap, while the case, module, and all major components remain original to the watch. The photos best describe its physical condition. Key Details • Brand: Casio • Model: B812 • Module: 58 • Era: 1970s • Origin: Japan Domestic Market (JDM) • Movement: Digital Quartz (Lithium-powered) • Display: Time, Day, Date, Seconds • Case Material: Stainless Steel • Strap: Aftermarket black resin/rubber strap • Condition: Shows signs of use and age; fully functional • Made in Japan A classic early Casio digital that captures the essence of 1970s JDM design — sleek, purposeful, and built to last. A great addition to any vintage Casio or early digital watch collection. Ships carefully. Feel free to message me with any questions.