173 Citizen 21 Jewels Automatic Watch

The object in the image is a vintage Citizen Automatic 21 Jewels Day-Date Watch. It features a distinctive dark grey dial with a subtle sunburst finish, silver-toned hour markers, and matching hands with a luminous inlay. The watch has a day and date prominently displayed at the 3 o'clock position, with the day appearing in a Japanese character and the date as a numeral. Housed in a silver-toned cushion-shaped case, it is paired with an integrated metallic bracelet, characteristic of many watches from its era. The dial clearly indicates 'AUTOMATIC' movement and '21 JEWELS', signifying a mechanical self-winding mechanism with a good number of jewels to reduce friction and improve longevity.