★ Please check the condition of the item in the photos. I have taken many photos to make it easy to understand. ★ You can see scratches when you zoom in, but they are almost unnoticeable to the naked eye, and the condition seems very good. ★ Immediate purchase is OK. ★ I will basically ship within 24 hours of payment. Brand: CITIZEN Series: PARAWATER Case Number: 4-610423TA Serial Number: 9086794 Water Resistance: S.S. (Stainless Steel Case Back) ※ This is the first fully waterproof design made in Japan. ※ It is believed to have been manufactured in August 1970. ※ This is a CITIZEN COSMO STAR DATE wristwatch. ★ Winding it up, it runs with no major errors for 120 minutes. It is currently running smoothly, but I cannot guarantee its operation after purchase. Please refrain from purchasing if you do not understand vintage watches or if you are overly concerned about condition. ※ Some people don't understand the difference between manual winding and automatic winding. I will explain it simply. Manual winding watch: The crown is a mainspring. If you wind the mainspring when you wake up in the morning, it will continue to run for about a day. Automatic winding watch: The mainspring is inside the watch, and the mainspring is automatically wound when you wear the watch on your wrist and go about your daily activities. It won't stop if you wear it. In general, both manual winding and automatic winding watches are called mechanical watches. The second hand of a mechanical watch moves smoothly, like flowing water, instead of ticking every second. This is a vintage CITIZEN COSMO STAR DATE wristwatch. The dial has the markings "CITIZEN", "COSMO STAR DATE", "JAPAN", and "6020-Y". 【Brand】CITIZEN 【Model Name】COSMO STAR DATE 【Color】Silver系 (Silver-toned) 【Condition of Item】Has scratches and dirt Thank you. CITIZEN COSMO STAR automatic watch, with date display, stainless steel case and mesh band. - Brand: CITIZEN - Model Name: COSMO STAR - Function: Automatic watch - Date Display: Yes - Case Material: Stainless Steel - Band Material: Mesh Band Purchased at auction. Thank you for viewing.