Thank you for viewing. This is a Seiko 9021-5010 [Junk] wristwatch. The wrist size is approximately 20 cm for both. Operation not confirmed. It is a junk item because it is unknown whether the battery is dead or if it is broken. Please check the size and condition in the photos. Some of the items listed are also sold elsewhere. Please note that items may become out of stock due to concurrent sales. Everything in the photos is included. Please understand that this is a used item before purchasing.