For sale to organize my collection. PROSPEX SBBN042 Brand: SEIKO PROSPEX Seiko SBBN042 Divers Tuna 1000m Marine Master Professional 7C46-0AM0 Limited Edition The serial number is in the second digit. The watch is in very good condition. All functions work well and keep accurate time. There are no problems with the crown operation. The bezel rotates a little stiffer than when new, but there is a scratch on the inside of the bezel that is not very visible, and it is not very noticeable. There is a proper click feel. This is the part circled in blue in the fourth photo. There is a scratch on the edge of the bezel, but not on the markers or numbers. The band has slight wear (some of the letters are worn off at the free loop position). There are no scratches on the glass. Please take a good look at the photos and make your own judgment. Box and instruction manual are included. Thank you.