# Yoshiaki's SEIKO Obsession Diver 7549-7010 Professional 300m First Generation Tuna Can Based on the serial number, this item was manufactured in January 1982. I believe it's a watch from approximately 44 years ago. The functions have been confirmed: One pull for date and day adjustment, Two pulls for time adjustment. Of course, it screws down and the hacking function is OK. Water pressure testing has not been performed; please consider it to be water-resistant for daily life. The band is a Taikonaut 22mm Metal Watch Band Stainless Steel Oyster Bracelet Brushed Silver V-Clasp Straight End is used. As a vintage diver, it's in amazing condition. There are almost no scratches, and it's a wonderful piece. I only want to sell it to someone who truly wants it. The watch stand is for photography purposes and is not included. There are no noticeable scratches, and it's a very clean item, but since it's not new, there may be extremely minor scratches that don't show up in the images. Please make your judgment from the images, and please understand and agree before purchasing.