【Also available on Mercari Shops - shop followers get a 20% discount coupon. #nekoneko → Filter → Seller → Shop (Mercari Shops) to go to Nekoneko-do's Mercari shop】 Also selling vintage and antique watches. → #nekoneko *Please read the description and profile before purchasing. ●Product Name: CITIZEN Challenge Timer Chronograph Blackie Automatic 1972 Made in Japan CTZ crown 23 jewels Screw back ●Case width: approx. 39mm (including crown) Lug width: approx. 19mm Wrist circumference: approx. 17cm (Please allow for some error) ●This is a mechanical automatic winding model from 1972 of the "CITIZEN Challenge Timer Chronograph Blackie," which is still highly popular even though it is no longer in production. The automatic chronograph developed by CITIZEN is only this "Challenge Timer," making it a rare series. CITIZEN chronographs are often characterized by "horns," but this is a unique arrangement for the original model. The dial is matte black with an orange chronograph hand that adds an accent and catches the eye. It's a playful item recommended for everyday use. A 30-minute counter is located at the 6 o'clock position, and the orange-tipped hand is a measuring hand that moves when the chronograph is activated, so there is no second hand. The day of the week is displayed in both English and Japanese. The date can be advanced by pulling the crown one step, the hands can be moved by pulling the crown two steps, and the day of the week can be advanced by pressing the pusher (reset button) at the 4 o'clock position while the crown is pulled one step. ●Before listing, I checked the operation, and it is running well. The daily rate measured by the timegrapher is about +14 seconds when placed flat, which is a very good condition for a vintage watch. The stopwatch button and reset button are the type that are pressed firmly and work properly. ●As it is like new, there are no scratches or damage that would detract from the appearance of the dial or exterior, and it is in overall beautiful condition. The engraving on the back cover is also clearly visible. Please check the photos. ●There may be scratches or stains that cannot be fully captured in the photos. Also, the evaluation of the item is my subjective opinion, so there may be individual differences. Please consider the item by referring to the description and photos. ●Shipping will be done as quickly and carefully as possible.