The Seiko DAL1BP rubber watch band is an original and genuine watch band for the Seiko classic turtle 6309-7049 and 6309-7040. This ban can also be used to transform the Seiko Dive watch that has a 22mm lug width such as the SKX009 and SKX007, Turtle series SRPA21, SRP773, SRP775, SRP777 etc and Tuna series.