Seiko C515-500A Men’s Vintage Calculator Digital Sports Watch JDM 1980s

Up for sale is an extremely rare vintage Seiko C515-500A men’s digital calculator sports watch, produced for the Japan Domestic Market (JDM) during the 1980s. This is the extremely rare black variant of the C515 calculator series, featuring its unmistakable full-keypad design and distinctive black face. These early Seiko calculator watches are among the most recognizable digital designs from the brand’s experimental era. The watch is working properly with the exception of the sound, which is not functioning. All other features and functions of the watch are working properly, including the calculator functionality. All parts of the watch are original, including the original Seiko stainless steel bracelet. The watch comes with a genuine vintage Seiko presentation box, although I am unsure if the box is original to this specific watch. The watch is in very good vintage physical condition with visible signs of use and age. The photos best describe its physical condition and should be reviewed carefully by interested buyers. Key Details: * Brand: Seiko * Model / Reference: C515-500A * Era: 1980s * Market: Japan Domestic Market (JDM) * Movement: Digital Quartz * Style: Calculator / Digital Sports Watch * Variant: Extremely Rare Black Variant * Bracelet: Original Seiko Stainless Steel Bracelet * Originality: All Parts Original * Functionality: All Features and Functions Working Properly Except Sound * Box: Genuine Vintage Seiko Box; Unsure if Original to This Specific Watch * Physical Condition: Very Good Vintage Physical Condition With Visible Signs of Use and Age An exceptionally rare and highly collectible example of the Seiko C515-500A black variant. Its distinctive calculator keypad, original bracelet, and uncommon black configuration make it a standout piece from Seiko’s vintage digital era. Ships carefully. Feel free to message me with any questions.