Citizen Automatic

The watch in the image is a Citizen automatic watch, specifically indicated by the "CITIZEN AUTOMATIC" and "21 JEWELS" text visible on the dial.
Information about this watch:
Brand: Citizen.
Movement: Automatic, meaning it is powered by the motion of the wearer's wrist and does not require a battery.
Jewels: "21 JEWELS" indicates the number of synthetic rubies or sapphires used in the movement to reduce friction and wear on moving parts, enhancing durability and accuracy.
Dial: The watch features a light-colored, possibly gold-toned, octagonal dial with a day-date complication.
Case and Bracelet: It has a silver-toned metal case and a matching integrated metal bracelet.
Style: The design suggests a vintage or retro aesthetic, common for Citizen automatic watches from certain eras.