Seiko 6309-7049 Diver in good condition. Other than the modern rubber strap this watch is all correct as it should be. There are small marks only commiserate with age (June 1983). This 6309 starts easily with a little shake. The Tsunami wave on the caseback is in excellent crisp and sharp condition. There are no aftermarket parts. The rubber strap is a DAL1BP Seiko replacement.