This is a CITIZEN automatic chronograph, commonly known as the "Tsunokurono" (Horn Chrono). It's a model from around the 1970s, equipped with 23 jewels (23 JEWELS). It has a date display, and the chronograph functions properly. Wrist circumference: approximately 20cm It's an automatic watch, but it doesn't run when shaken. Please check the photos for overall signs of use and minor scratches. *Everything in the photos is included. There are no box or accessories. This is an antique item and is sold as-is. Although the operation has been confirmed, please consider it with the assumption of an overhaul if you are particular about accuracy or the feel of the crown operation. Recommended for collectors and vintage enthusiasts. ⸻ #CITIZEN #Citizen #Tsunokurono #Chronograph #AutomaticWinding #MensWatches #VintageWatch #AntiqueWatch #23JEWELS #ShowaRetro