Vintage CITIZEN RONSON 21 Jewels Men's Automatic/Manual Winding Watch. This is an automatic watch, but it also has a manual winding function. It's a rare CITIZEN model with a skeleton design on both the front and back, and a stylish crown position. Face Size: Width: Approximately 3.6cm Wrist Size: Up to approximately 18cm Please allow for some minor errors. The strap is a bit short. There are minor scratches, scuffs, and dirt due to use and aging. The photos mainly show noticeable scratches and dirt, but there may be other scratches that are not visible in the images. Please understand this beforehand. As this is a used item, please refrain from purchasing if you are looking for a perfect item. The strap is short and shows signs of wear, and it is an aftermarket product, so please consider it as a service. Automatic/Manual Winding Watch. If the automatic winding is insufficient, please supplement it with manual winding. This watch is in working order. The time is generally accurate. If you require greater accuracy, please consider purchasing with the assumption of an overhaul (OH). (We confirm the operation of automatic/manual winding watches at the time of listing and shipping. Automatic/manual winding watches are not as precisely accurate as battery-powered watches. Please understand that there may be a time difference of a few minutes per day depending on the position, etc. We list items that we judge to be generally accurate. Also, to reconfirm the condition of automatic/manual winding watches, it takes 2-3 days to ship. Thank you for your understanding.)