Rare Vintage Casio Casiotron 01-502 Men’s Digital Sports Watch JDM 1970s

Up for sale is a rare vintage Casio Casiotron 01-502 men’s digital sports watch, produced for the Japan Domestic Market (JDM) in the 1970s. As one of Casio’s earliest digital watch models, the Casiotron series marked a major milestone in horological history — being among the first digital watches to feature a fully automated calendar function. This example is being sold for parts or repair, as it is currently not functioning and the screen on the module has major display issues. It has not been tested further, and the internal condition is unknown. The watch retains all original components aside from the bracelet, which has been replaced with an aftermarket stainless steel strap. The case, bezel, and buttons are all original to the watch. Cosmetically, the watch shows signs of use and wear throughout, consistent with its age. However, it still presents well, and the photos best describe its physical condition. Key Details: • Brand: Casio • Model: Casiotron • Reference: 01-502 • Era: 1970s • Market: Japan Domestic Market (JDM) • Features: Early Digital Display, Day-Date Calendar • Case Material: Stainless Steel • Strap: Aftermarket Stainless Steel Bracelet • Condition: For parts or repair – not functioning; screen has major issues; signs of use throughout • Country of Manufacture: Japan An ultra rare and historically significant early Casio digital watch, the Casiotron 01-502 is nearly impossible to find today — especially as a complete example. This is an exceptional opportunity for collectors or restorers of early Casio technology. Ships carefully. Feel free to message me with any questions.