Rare Vintage Casio Casiotron 81CS-36 Men’s Digital Sports Watch JDM 1970s

Up for sale is a rare vintage Casio Casiotron men’s digital alarm chronograph wristwatch, reference 81CS-36, from the 1970s. Produced exclusively for the Japan Domestic Market (JDM), this model is part of Casio’s pioneering Casiotron series, which introduced some of the earliest multifunction digital sports watches to the market. The watch is in full working condition, with all features and functions operating properly, including timekeeping, chronograph, alarm, and calendar display. All parts of the watch are 100% original, including the stainless steel case, bracelet, and signed Casio clasp. Impressively, the watch still retains its original caseback protective sticker—an uncommon and desirable detail for collectors. Cosmetically, the watch is in great physical condition, showing signs of use consistent with its age. Please review the photos carefully, as they best describe its physical condition. Key Details: • Brand: Casio • Model: Casiotron Alarm Chronograph • Reference: 81CS-36 • Era: 1970s (JDM release) • Movement: Digital Quartz • Features: Alarm, chronograph, calendar, digital timekeeping • Case Material: Stainless steel • Bracelet: Original stainless steel bracelet with Casio-signed clasp • Condition: Fully functional; great physical condition with signs of use; retains original caseback sticker A rare and historically significant Casio Casiotron from the 1970s—an outstanding piece for vintage digital watch enthusiasts and serious collectors of early Casio technology. Ships carefully and securely. Feel free to message me with any questions.