The SEIKO SEIKOMATIC-R is a classic wristwatch with automatic winding and a date display. I do not have any knowledge of watches, so the explanation is based only on what is written on the watch. Please understand that I cannot provide any guarantees, and the watch is sold as is. Purchased around 1965 (Showa 40) and used for approximately 20 years. ・Brand: SEIKO ・Model Name: SEIKOMATIC-R 30 jewels ・Functions: Automatic winding, operation confirmed ・Date Display: Date and day of the week also function ・All three hands move, but the timekeeping is not accurate. The second hand seems to be moving accurately, but the minute hand feels loose. ・Reference: 8306-8000 ・Water Resistance: DIASHOCK 30M Currently, it is considered non-waterproof. ・Case: Approximately 35.5mm ・Serial: 5701617 ・Belt: Not included Original box and instruction manual are not included. !! Please note that I do not accept price negotiations. !! This is a used item, so please check the images and understand before purchasing. Cancellations and returns after purchase are not accepted. No claims, no returns. Shipping will be done using recycled packaging materials. Please be aware of this. Thank you for viewing.