This product is a Rado Diastar. It is a vintage hand-wound watch. Comes with a genuine Rado strap. It is an antique hand-wound watch. We have checked the operation before listing, so you can use it with confidence. The Rado Diastar is a popular antique watch both overseas and domestically. The wrist size can be easily adjusted. Free size. Although it is in good condition, there are scratches and scuffs, so please refrain from purchasing if you are sensitive to these details. This watch looks great with suits and casual wear. Thank you. We have many other items for sale, so please take a look. Also, we do not accept cancellations after purchase, so please be aware of this.